Fill in the blank (_) in the following sentence from the following choices.
Sentence: One way to make rice crispy treats will need chocolate and marshmallows with the _ starting off soft.

Choice 1: One way to make rice crispy treats will need chocolate and marshmallows with the chocolate starting off soft.
Choice 2: One way to make rice crispy treats will need chocolate and marshmallows with the marshmallows starting off soft.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. One way to make rice crispy treats will need chocolate and marshmallows with the marshmallows starting off soft