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 am hesitating between 4 options to answer the following question, which option should I choose?
Question: How do oceans influence seashore climates?
Possibilities:
- They tend to make them warmer.
- They tend to make them colder.
- They tend to increase temperature ranges.
- They tend to reduce temperature ranges.

They tend to reduce temperature ranges.