Which of the Following Illustrates an Agency Problem

Which of the following illustrates an agency problem?

A) The advertising agency that a company uses produces top quality materials and charges a high price for its work.
B) A not-for-profit environmental agency stages a protest.This results in negative attention to a company's manufacturing methods.
C) A company's board, in wanting to protect board member compensation, agrees with everything company management suggests.
D) A hiring agency screens out potential applicants to a company's job posting.