MY ANALYSIS
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.
Meaning analysis:Soaring television costs accounted for more than half of the spending of the budget in the presidential campaign of 1992, in comparison to the proportion of television costs that accounted for spending in any previous election presidential campaign.{Here proportion of costs are compared.}
Error analysis:Soaring(Modifier:adjective)
Television costs accounted for more than half the spending in the presedential campaign of 1992
a greater proportion than (comparison marker)
it was in any previous election.
Both the subject are compared
SV PAIR: it wrongly refers to television costs which is plural so it should be replaced by appropriate plural pronoun i.e. they
Verb tense: as the comparison is with a event which happened earlier than any other event thus past perfect tense should be used instead of simple past tense as in clause 2.
POE:only option C is correct
PS: Bold italic- Noun/ pronoun
underline text - verb