We can see the Moon because it
reflects light
The correct option is: C
Explanation of the correct option:
Option C: We can see the moon because it reflects the sunlight that falls on it
Explanation of the incorrect option:
Option A: The moon doesn't absorb any light from Sun
Option B: The moon doesn't give out light as it is non-luminous. We know that Moon is a natural satellite.
Option D: The moon does have a shadow.