[单选题]In deciding _______ a course of action,the candidates tried to estimate its likely impact on the voters.

A
what to pursue
B
which to pursue
C
whether to pursue
D
if to pursue
正确答案:C
题目解析
句意:在决定是否采取行动时,候选人试图估计其对选民可能产生的影响。whether 有是否之意,符合题意
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