How are the sun and Earth's moon different? (2 points)
a
The sun is a ball of gases that revolves around Earth, while the moon is the center of the solar system.
b
The sun is a ball of rock and gas, while the moon is a ball of rock that revolves around the sun.
c
The sun is the center of the solar system, while the moon is a ball of rock that revolves around Earth.
d
The moon is the center of the solar system, while the sun is the center of the Milky Way.