ERIN: (looking at a calendar) What do you think?
MICHAEL: (shaking his head) I don't know, but we have to decide.
ERIN: (picking up baby Grant and kissing him) Your second birthday will be so much fun, big boy!
MICHAEL: I think more kids will be able to come if we have it in the afternoon. And on a Saturday, not Wednesday. Well, at least we have the theme picked out.
ERIN: Thank goodness for that! Grant just loves Dr. Seuss. (pulls out her cell phone) I think I will call his grandmother to talk about it.
Which statement BEST explains what is happening in this scene?

A) Erin and Grant are planning a birthday party for Michael.
B) Michael and Erin are trying to choose a date and time for a Christmas party.
C) Michael is planning to take Grant to the doctor before his birthday.
D) Michael and Erin are trying to choose a date and time for Grant's birthday party.