Fill in the blank (_) in the following sentence from the following choices.
Sentence: Katrina's home isn't nearly as clean as Elena's because _ has always been a tidy person.

Choice 1: Katrina's home isn't nearly as clean as Elena's because Katrina has always been a tidy person.
Choice 2: Katrina's home isn't nearly as clean as Elena's because Elena has always been a tidy person.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
1.