Fill in the blank (_) in the following sentence from the following choices.
Sentence: Jennifer noticed Katrina's bench was covered in moss so _ offered to help clean it.

Choice 1: Jennifer noticed Katrina's bench was covered in moss so Jennifer offered to help clean it.
Choice 2: Jennifer noticed Katrina's bench was covered in moss so Katrina offered to help clean it.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.