Angela's Dog, Molly, Got Sprayed by a Skunk

Angela's dog, Molly, got sprayed by a skunk. She spent the weekend cleaning the house and Molly. At work on Monday, one of his colleagues mentions that he might want to take a shower, because everyone can smell her when he walks into a room. She is confused, because he cannot smell the skunk. What has happened?

A) Angela has been on a variable-ratio schedule.
B) Angela has habituated to the smell of the skunk.
C) Angela is demonstrating escape conditioning.
D) Angela was biologically prepared to like this particular smell.