why the answer is A not C

lily88888UID: 2828533

Campaigning for election to provincial or state office frequently requires that a candidate spend much time and energy catering to the interests of national party officials who can help the candidate to win office. The elected officials who campaign for reelection while they are in office thus often fail to sever the interests of their local constituencies.

A. Catering to the interests of national party officials sometimes conflicts with serving the interests of a provincial or state official's local constituencies.

C. The interests of local constituencies are well served only by elected officials who do not cater to the interests of national party officials.

duijinxiaoziUID: 2585955

1# lily88888

题目问题是啥？
哪年的题？
:-)

lily88888UID: 2828533

sorry, assumption. Maybe 1996.

Thank you so much, Tim

duijinxiaoziUID: 2585955

Because (A) bridges the gap between "catering to national parties" and "the failure to serve constituents".
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（C）goes too far. The word "only" is too strong here.
Maybe the interests of local constituencies are well served by one elected official who also caters to the interests of national party officials.
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only ，never 等副词，多为 错误选项 的标志