Fill in the blank (_) in the following sentence from the following choices.
Sentence: Emily read out to Katrina exactly what _ thought about them just to let them know.

Choice 1: Emily read out to Katrina exactly what Emily thought about them just to let them know.
Choice 2: Emily read out to Katrina exactly what Katrina thought about them just to let them know.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.