Fill in the blank (_) in the following sentence from the following choices.
Sentence: Katrina was invited to be the house guest of Laura because _ needed a dog sitter.

Choice 1: Katrina was invited to be the house guest of Laura because Katrina needed a dog sitter.
Choice 2: Katrina was invited to be the house guest of Laura because Laura needed a dog sitter.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.