Which of the following scenarios BEST defines phishing?

Which of the following scenarios BEST defines phishing?

A.
A user receives an email from a friend to download a picture but the file format ends in .exe.

B.
A user receives a pop-up message about a virus from a company that states that if they buy this product it will remove the virus.

C.
A user receives a message about unwanted activity from their antivirus asking to remove the suspect file.

D.
A user receives an email from a person in another country with a story as to why they need help with a financial arrangement.