What is tidal locking in relation to the Moon and Earth?
A. The far side or "dark side" of the Moon is always in shadow making it impossible to see.

B. Tidal locking make the ocean tides on Earth produce two high tides and two low tides every 24 hours.

C. Tidal locking keeps the Moon in a synchronous orbit so we see only one side as it orbits Earth.

D. Tidal locking keeps Earth is a steady orbit around the Moon.