(E) The new medication will displace all migrame medications currently being used.

4. The highest-ranking detectives in the city's police department are also the most adept at solving crimes. Yet in each of the past ten years. the average success rate for the city's highest-ranking detectives in solving criminal cases has been no higher than the average success rate for its lowest-ranking detectives.

Which one of the following, if true, most helps to resolve the apparent paradox?

(A) The detectives who have the highest success rate in solving criminal cases are those who have worked as detectives the longest.

(B) It generally takes at least ten years for a detective to rise from the lowest to the highest ranks of the city's detective force.

(C) Those detectives in the police department who are the most adept at solving criminal cases are also those most likely to remain in the police department.

(D) The police department generally gives the criminal cases that it expects to be the easiest to solve to its lowest-ranking detectives.

(E) None of the lowest-ranking detectives in the police department had experience in solving criminal cases prior to joining the police department.

5. Immigration runoff from neighboring farms may well have increased the concentration of phosphorus in the local swamp above previous levels, but the claim that the increase in phosphorus is harming the swamp's native aquatic wildlife is false: the phosphorus concentration in the swamp is actually less than that found in certain kinds of bottled water that some people drink every day.

The argument is vulnerable to criticism on the ground that it

(A) makes exaggerations in formulating the claim against which it argues

(B) bases its conclusion on two contradictory claims

(C) relies on evidence the relevance of which has not been established

(D) concedes the very point that it argues against

(E) makes a generalization that is unwarranted because the sources of the data on which it is based have not been specified.

6. Copyright laws protect the rights of writers to profits earned from their writings. whereas patent laws protect inventors' rights to profits earned from their inventions. In Jawade, when computer-software writers demanded that their rights to profit be protected, the courts determined that information written for a machine does not fit into either the copyright or the patent category. Clearly, therefore, the profit rights of computer-software writers remain unprotected in Jawade.

Which one of the following is an assumption on which the argument depends?

(A) Computer-software writers are not an influential enough group in Jawade for the government to consider modifying existing copyright laws in order to protect this group's profit rights.

(B) No laws exist, other than copyright laws and patent laws, that would protect the profit rights of computer-software writers in Jawade.

(C) Most of the computer software used in Jawade is imported from other countries.

(D) Computer software is more similar to writings covered by copyright laws than it is to inventions covered by patent laws.

(E) Copyright laws and patent laws in Jawade have not been modified since their original adoption.

7. Brownlea's post office must be replaced with a larger one. The present one cannot be expanded. land near the present location in the center of town is more expensive than land on the outskirts of town. Since the cost of acquiring a site is a significant part of the total construction cost, the post office clearly could be built more cheaply on the outskirts of town.

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