Fill in the blank (_) in the following sentence from the following choices.
Sentence: Erin was able to install the computer software themselves, but Kayla failed to do so, because _ was a computer novice.

Choice 1: Erin was able to install the computer software themselves, but Kayla failed to do so, because Erin was a computer novice.
Choice 2: Erin was able to install the computer software themselves, but Kayla failed to do so, because Kayla was a computer novice.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.