Fill in the blank (_) in the following sentence from the following choices.
Sentence: Eric was debating on building an enclosure for his turtle cage outside, to keep the sun off. Because the _ was hot.

Choice 1: Eric was debating on building an enclosure for his turtle cage outside, to keep the sun off. Because the enclosure was hot.
Choice 2: Eric was debating on building an enclosure for his turtle cage outside, to keep the sun off. Because the sun was hot.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.