Fill in the blank (_) in the following sentence from the following choices.
Sentence: Carrie bought a funny birthday card just for Sarah. _ found it under her door.

Choice 1: Carrie bought a funny birthday card just for Sarah. Carrie found it under her door.
Choice 2: Carrie bought a funny birthday card just for Sarah. Sarah found it under her door.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.