Which of the Following Information Discovered During an Audit Most

Which of the following information discovered during an audit most likely would raise a question concerning possible illegal acts?

A) Related party transactions, although properly disclosed, were pervasive during the year.
B) The entity prepared several large checks payable to cash during the year.
C) Material internal control weaknesses previously reported to management were not corrected.
D) The entity was a campaign contributor to several local political candidates during the year.