Grey's Anatomy is getting to be all about the baby! As Callie's pregnancy becomes a main story line, lots of funny situations arise — especially since there are three parents-to-be chiming in with their opinions. Take this quiz and see how closely you watched last night's episode.

Photo copyright 2011, ABC, Inc.

The parent triangle involves which three characters?

Callie, Mark, Arizona
Callie, Mark, Lexie
Callie, Alex, Arizona
Progress