It has a time on it for like hour

What best explains the reason for daily high and low tides?
A. Warm, less dense water rises, moving cold dense water toward the shore.
B. Volcanic activity on the ocean floor causes water to swell.
C. The moon gravitational pull on earth causes water to budge on two sides of the earth.
D. Earth is tilted on an axis, causing water to spread unevenly across the planet.
Please I mark brainlest