Sam, a Coworker, Has Been Making Personal Comments to You

Sam, a coworker, has been making personal comments to you that make you feel uncomfortable. At first, he just made an occasional remark about how nice you look, but recently, the remarks and the personal nature of the remarks have increased. What action should you take?

A) Ignore Sam's comments, because acknowledging them will "add fuel to the fire"
B) Request to work a different shift to avoid Sam altogether
C) Be assertive but diplomatic with Sam and tell him his comments are inappropriate.
D) Request a transfer to another office
E) Ask Sam to request a transfer to another office