C
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
From Earth, we see the sun in the day sky and other stars in the night sky. Nighttime stars look like tiny points of light. Which statement explains why nighttime stars appear so much smaller than the sun?

### Choices:
A. The stars are much smaller.
B. The sky is much darker at night.
C. The stars are much farther away.
D. The moon blocks out most starlight.

### Answer:
