Fill in the blank (_) in the following sentence from the following choices.
Sentence: Mary collected fine china dishes but Jessica preferred plastic as _ was very careful with their possessions.

Choice 1: Mary collected fine china dishes but Jessica preferred plastic as Mary was very careful with their possessions.
Choice 2: Mary collected fine china dishes but Jessica preferred plastic as Jessica was very careful with their possessions.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2.