We have heard a good deal in recent years about the declining importance of the two major political parties. It is the mass media, we are told, that decide the outcome of elections, not the power of the parties. But it is worth noting that no independent or third-party candidate has won any important election in recent years, and in the last nationwide campaign, the two major parties raised and spent more money than ever before in support of their candidates and platforms. It seems clear that reports of the imminent demise of the two-party system are premature at best.

Which of the following, if true, would most strengthen the argument above?

(A) The percentage of voters registered as independents is higher today than ever before.

(B) In a recent presidential campaign, for the first time ever, an independent candidate was invited to appear in a televised debate with the major-party candidates.

(C) Every current member of the U.S. Senate was elected as the candidate of one of the two major parties.

(D) In a recent opinion poll, most voters stated that a candidate’s party affiliation was an insignificant factor in judging his or her fitness for office.

(E) In the last four years, the outcome of several statewide elections has been determined by the strength of the third-party vote.

D ...

Conclusion: mass media decide the outcome of elections, not the power of the parties

Therefore, D can strengthen the argument if candidate’s party affiliation is an insignificant factor

I go for (C).

Some people say the two-party system is declining because of the mass-media.

BUT,

It is too much earlier to say the two-party system will soon demise.

(C) is saying that the two major parties STILL HAVE GREAT INFLUENCE.

clear C for me.

OA please.
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hey ya......