One study found that although government policy and the industrial sector in which a company operates can influence its productivity and financial strength, management decisions have at least as great an impact on a company’s performance.
A) management decisions have at least as great an impact
B) decisions by management have a great impact
C) manager decisions impact greatly
D) decisions by a company’s management impact greatly
E) what a company’s management decides has a greater impact
(the official answer is (A) because of the two requirements for a comparison: 1) parallel structure and 2) grammatical expression. I agree with the parallel structure explanation, but not the grammatical or idiomatic expression. Isnt the idiom in (A) awkward and incorrect? Is it appropriate to say (have at least as great an)? Isnt it more appropriate to say (have as great as)...where is the second "as"? Isnt the correct idiom...as X as?
Thanks again