Respuesta :
I'm not 100% sure but I think the answer is D. The moon's axis does not always align with Earth's shadow.
D
Why do they not happen every month? A lunar eclipse occurs when the Moon enters the Earth's shadow. A solar eclipse occurs when the Moon's shadow falls on the Earth. They do not happen every month because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.
i hope this helps chu