Fill in the blank (_) in the following sentence from the following choices.
Sentence: Patricia invited Elena to exercise with them at the gym. _ has been going almost daily.

Choice 1: Patricia invited Elena to exercise with them at the gym. Patricia has been going almost daily.
Choice 2: Patricia invited Elena to exercise with them at the gym. Elena has been going almost daily.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.