Which of the Following Illustrates Spear Phishing

Which of the following illustrates spear phishing?

A) Tanya clicks on a link that appears to have been emailed by her colleague that downloads a harmful software.
B) Margaret receives an email from an unknown account claiming that she has won the state lottery and asks her for her credit card information.
C) Parker receives an email from an unknown account claiming to be from a charitable organization and requests him to transfer money as a donation.
D) George opens a pornographic website on his office computer without the knowledge of his coworkers.