Which Course of Action Most Improves the Following Sentence

Multiple Choice

Which course of action most improves the following sentence?
Once it became clear that the hedge fund had been involved in some dirty deals, the SEC sent an auditor to pour over the company's books.

A) Change pour to pore.
B) Change auditor to adjudicator.
C) Capitalize hedge fund.
D) Change the comma to a semicolon.