Fill in the blank (_) in the following sentence from the following choices.
Sentence: Depression was a constant struggle for Rebecca but not for Amy, because _ was a positive optimist.

Choice 1: Depression was a constant struggle for Rebecca but not for Amy, because Rebecca was a positive optimist.
Choice 2: Depression was a constant struggle for Rebecca but not for Amy, because Amy was a positive optimist.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.