the Moon blocks the Earth from the Sun. the first four planets in the solar system are aligned. Earth blocks the Moon from the Sun. Earth's shadow falls on the Sun.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A solar eclipse occurs when
Possibilities:
- the Moon blocks the Earth from the Sun.
- the first four planets in the solar system are aligned.
- Earth blocks the Moon from the Sun.
- Earth's shadow falls on the Sun.

the Moon blocks the Earth from the Sun.