Fill in the blank (_) in the following sentence from the following choices.
Sentence: Kayla had an effective way of getting Jennifer to do what they wanted, so _ took advantage of them.

Choice 1: Kayla had an effective way of getting Jennifer to do what they wanted, so Kayla took advantage of them.
Choice 2: Kayla had an effective way of getting Jennifer to do what they wanted, so Jennifer took advantage of them.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.