Fill in the blank (_) in the following sentence from the following choices.
Sentence: Lindsey had terrible insomnia and asked Rachel for suggestions, because _ had never experienced this before.

Choice 1: Lindsey had terrible insomnia and asked Rachel for suggestions, because Lindsey had never experienced this before.
Choice 2: Lindsey had terrible insomnia and asked Rachel for suggestions, because Rachel had never experienced this before.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.