Fill in the blank (_) in the following sentence from the following choices.
Sentence: Kayla rolled down her socks and showed Monica her foot ulcers.  _ was shocked.

Choice 1: Kayla rolled down her socks and showed Monica her foot ulcers.  Kayla was shocked.
Choice 2: Kayla rolled down her socks and showed Monica her foot ulcers.  Monica was shocked.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.