Of the three major candidates for President in 2004, Ralph Nader, an

Dear reachskishore,

I'm happy to help.

This is not the most impressive question.

One of the ideas this questions tries to explore is the distinction of countable vs. uncountable. See
GMAT Grammar: Less vs. Fewer
GMAT Comparisons: More vs. Greater and Less vs. Fewer

More importantly, we use comparatives (more, fewer, bigger, smaller) for situations with just two elements, and we use superlatives (most, least, biggest, smallest) for cases with 3+ elements. We are discussing three candidates, so we need superlatives.

(B) & (C) use comparatives, not superlatives. (D) says "less votes," rather than "fewer votes." (E) seems to be trying to win a contest for the longest and most awkward answer possible, and it definitely could be a finalist in that competition--that's how wrong it is.

(A) is flawless and correct.

The incorrect answers can be eliminated in a relatively straightforward manner. The subject is also somewhat contrived: the 2004 US Presidential Election was a contest primarily between two major candidates, who won all of the electoral votes and 99% of the popular vote between them. Nader and the others merely were rounding errors in the big picture.

Here's a much more challenging question exploring some similar themes:
Johannes Brahms lived

Does all this make sense?
Mike