I'm pretty sure they are talking about the revolution of the moon orbiting the Earth. (Which is going counterclockwise) I'm not 100% sure though.
Maybe your title can be Earthquake effects
“The southern portion of the Pacific coast—particularly southern California—can be influenced by maritime tropical air masses, abbreviated mT. These warm, moist air masses originate in the subtropical Pacific Ocean. They may bring fog or low clouds with them.”
The answer is B, the ocean affects their temperatures and helps act as air conditioning, cooling the area near it.