Fill in the blank (_) in the following sentence from the following choices.
Sentence: Amy had a better solution to the problem than Christine because _ had the same issue prior.

Choice 1: Amy had a better solution to the problem than Christine because Amy had the same issue prior.
Choice 2: Amy had a better solution to the problem than Christine because Christine had the same issue prior.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2. The sentence should read "Amy had a better solution to the problem than Christine because Christine had the same issue prior." This