Fill in the blank (_) in the following sentence from the following choices.
Sentence: Tammy used her writing software to help her write a cover letter but the _ was too long.

Choice 1: Tammy used her writing software to help her write a cover letter but the cover letter was too long.
Choice 2: Tammy used her writing software to help her write a cover letter but the software was too long.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.