Hi mikemcgarry,

Good Question.
strengthen was D all right. But i somehow did not settle as D for weakner.
cause A was similar to D, If i had to eliminate A i should eliminate D as well.

Can you explain how D is the answer ?
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Dear Shrivathsan

I'm happy to respond.

My friend, you wrote: "strengthen was D all right." Did you mean (F)? In this question, the OA for the strengthener question is (F). Do you understand this?

Now, for the weakener: you ask, why (D) and not (A). You see, the conclusion is "Therefore, since English and History teachers grade more, they should be paid more than the teachers of other subjects." In other words, the argument establishes a connection between grading and salary. Choice (A) describes a scenario in which extra time is spent with students, but nothing is being graded. In that sense, (A) is analogously related but outside the main focus of the argument. By contrast, (D) is about something that is graded--in particular, a time-consuming grading project for teachers other than English & History teachers. This weakens the argument.

Does this make sense?
Mike
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