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.
GWD1-Q16: 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