[QA] “Why don’t you complain to the company, John?” said Peter.

Question:

“Why don’t you complain to the company, John?” said Peter.

• A.
  Peter suggested that John should complain to the company.
• B.
  Peter advised John complaining to the company.
• C.
  Peter threatened John to complain to the company.
• D.
  Peter asked John why he doesn’t complain to the company.