Answer: C
Explanation: The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.
Because the gravity of the sun keeps all planets in their orbits :3 hope I helped
Prokaryotes.
I hope this helps!!
I just need to complete my registration. Idk, sorry.