Answer:
I believe the answer is D. It causes the core of the comet to melt
Explanation:
C is wrong because the comet doesn't fall apart when in contact with heat
D is most accurate because imagine its a microwave it warms from the inside out, so The inside, core, of the comet would be subject to melting instead of falling apart, mainly because the outside and core are different
Hope this helped, and I apologize if this is wrong or if the explanation is confusing/incorrect.
