Interesting question. Stuck between C and E, but will go for C. If C is right, I'll tell you my explanation.

Yesss C is correct now tell ur explanation please

Many people feel that hard work deserves a reward. However, this is not true.
Hard work should be its own reward, because such work intrinsically gives the
worker satisfaction when it is performed satisfactorily.

The author of the argument draws his or her conclusion by

A. Claiming than what is commonly believed is false for that very
reason. Eliminate. Makes no sense at all.
B. Pointing out the inconsistencies in a counterargument. Eliminate. He is stating a common belief and contradicting that.
C. Challenging the definition of the word "reward" as something
extrinsic to a task. Hard work should be its own reward, because such work intrinsically gives the
worker satisfaction when it is performed satisfactorily. - This sentence above gives away the answer.
D. Repeating a premise that was previously stated. Eliminate. He is contradicting a common belief, no repetition.
E. Allowing a counterclaim to weaken his or her argument. I thought E would be the answer, BUT on a closer look he is not really weakening his own arguement, he is contradicting a common belief, which is not his own claim.

Hope this helps.

Ah I was tied between B and C. Thanks!

SeemaSkl wrote:Many people feel that hard work deserves a reward. However, this is not true.
Hard work should be its own reward, because such work intrinsically gives the
worker satisfaction when it is performed satisfactorily.

The author of the argument draws his or her conclusion by

A. Claiming than what is commonly believed is false for that very
reason.
B. Pointing out the inconsistencies in a counterargument.
C. Challenging the definition of the word "reward" as something
extrinsic to a task.
D. Repeating a premise that was previously stated.
E. Allowing a counterclaim to weaken his or her argument.

i chose C for the answer choice. what is the OA?

OA as given above is C.