Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater

[BTGmoderatorDC]

Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.

(A) a greater proportion than it was

(B) a greater proportion than

(C) a greater proportion than they have been

(D) which is greater than was so

(E) which is greater than it has been


OA B

Source: GMAT Prep