I choose E.

I always find myself taking longer and performing poorly in these type of CR's. Can anyone offer any advise as to how I may improve in such questions.

Reva: Using extraneous incentives to get teenagers to change their attitude toward school and schoolwork won’t work. Take the program in West Virginia, for instance, where they tried to reduce their dropout rate by revoking the driving licenses of kids who left school. The program failed miserably.
Anne: It’s true that the West Virginia program failed, but many schools have devised incentive programs that have been very successful in improving attendance and reducing discipline problems.

According to Anne, the weak point in Reva’s claim is that it
(A) fails to consider the possibility that the majority of potential dropouts in West Virginia do not have driving licenses -> this is too specific and is not conveyed by anne's response.anne looks at reva's
argument much more than perspective of a driving licence. -> eliminate
(B) doesn’t provide any exact figures for the dropout rate in West Virginia before and during the program -> drop out rates hardly matter and drop out rates is not the point in the argument,point is that the deviced incentive program meant to change teenargers attitude failed -> eliminate
(C) ignores a substantial body of evidence showing that parents and employers have been using extrinsic incentives with positive results for years -> out of scope ,it does not matter to anne what parents think
(D) assumes that a positive incentive—a prize or a reward—will be no more effective than a negative incentive, like the revoking of a driving license -> this is quite close but here REVA does not talk about any positive approach neither does she refute any such .So this does not fully support..
(E) is based on a single example, the incentive program in West Virginia, which may not be typical-> this is apt here since it relates to the given context.Reva takes a simple example to prove the point that devised incentive program never work but anne refutes her and says [color=#FF00FF]but many schools have devised incentive programs that have been very successful this statement itself proves that anne supports her argument over that of REVA with other examples which are opposite to REVA's.> [/color]correct

Reva: Using extraneous incentives to get teenagers to change their attitude toward school and schoolwork won’t work. Take the program in West Virginia, for instance, where they tried to reduce their dropout rate by revoking the driving licenses of kids who left school. The program failed miserably.
Anne: It’s true that the West Virginia program failed, but many schools have devised incentive programs that have been very successful in improving attendance and reducing discipline problems.
According to Anne, the weak point in Reva’s claim is that it
(A) fails to consider the possibility that the majority of potential dropouts in West Virginia do not have driving licenses
(B) doesn’t provide any exact figures for the dropout rate in West Virginia before and during the program
(C) ignores a substantial body of evidence showing that parents and employers have been using extrinsic incentives with positive results for years
(D) assumes that a positive incentive—a prize or a reward—will be no more effective than a negative incentive, like the revoking of a driving license
(E) is based on a single example, the incentive program in West Virginia, which may not be typical