One Important Fact to Keep in Mind When Comparing Visible

One important fact to keep in mind when comparing visible and infrared images of Saturn is that:

A) neither visible nor IR is emitted by Saturn. What we see is entirely reflected from the Sun.
B) visible radiation is emitted by Saturn but the IR is entirely reflected from the Sun.
C) IR radiation is emitted by Saturn but the visible is entirely reflected from the Sun.
D) both visible and IR are emitted by Saturn in substantial amounts.