Why do the Earth's ocean tides occur?

Question

A
ABecause of the earth's rotation
B
BBecause of the gravitational pull of the moon and sun
C
CBecause of the earth's magnetic field

Answer 1

B. Because of the gravitational pull of the moon and sun

Tides are primarily caused by the gravitational forces exerted by the moon and, to a lesser extent, the sun on the Earth's oceans. This pull creates bulges in the water, leading to high and low tides as the Earth rotates.