Fill in the blank (_) in the following sentence from the following choices.
Sentence: Jennifer was at risk of encountering a shark during their swim, but Emily was not, because _ swam in the ocean.

Choice 1: Jennifer was at risk of encountering a shark during their swim, but Emily was not, because Jennifer swam in the ocean.
Choice 2: Jennifer was at risk of encountering a shark during their swim, but Emily was not, because Emily swam in the ocean.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1. This is because the sentence states that "Jennifer was at risk of encountering a shark during their swim," implying that