Fill in the blank (_) in the following sentence from the following choices.
Sentence: The fingernails of Steven grow faster than those of Randy because _ eats a lot more food.

Choice 1: The fingernails of Steven grow faster than those of Randy because Steven eats a lot more food.
Choice 2: The fingernails of Steven grow faster than those of Randy because Randy eats a lot more food.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.