Fat makes the polar bear large. Fat makes the polar bear slippery. Fat helps the polar bear run on ice. Fat helps the polar bear float in water.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Polar bears are very heavy. About half of a polar bear's mass is fat. How does this adaptation most help a polar bear as it hunts in the Arctic Ocean?
Possibilities:
- Fat makes the polar bear large.
- Fat makes the polar bear slippery.
- Fat helps the polar bear run on ice.
- Fat helps the polar bear float in water.

Fat helps the polar bear float in water.