They tend to make them warmer. They tend to make them colder. They tend to increase temperature ranges. They tend to reduce temperature ranges.
I gave my students this multiple choice question: How do oceans influence seashore climates?

Only one answer is correct among these 4 choices:
- They tend to make them warmer.
- They tend to make them colder.
- They tend to increase temperature ranges.
- They tend to reduce temperature ranges.

Could you tell me which one is correct?

They tend to reduce temperature ranges.