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

C. manager decisions impact greatly


A is the correct OA.

Here is the explanation for C.

(C) This choice tells us only about the impact of management decisions ("have a great impact") rather than drawing a comparison between the impact of management decisions and the impact of government policy and the industrial sector of a company. Additionally, “manager decisions” is awkward relative to the more commonly used term “management decisions.” Finally, decisions do not "impact on" performance; they impact performance.


Can anybody explain the bold part of the explanation. The correct option uses the same thing.

Thanks