Question

how is the moon illuminated?
it produces its own light.
it reflects light from the sun.
it transforms energy into light.
it absorbs light from the earth.

Explanation:

The moon is not a light - producing body. It appears illuminated because it reflects sunlight. The Sun is the primary source of light in our solar system, and the moon reflects this light towards the Earth.

Answer:

It reflects light from the Sun.