Context: Read the passage about sea otters' pockets.
Sea otters have bags of loose skin under each arm. They use them like pockets! When sea otters hunt, they put the food they find into their pockets. This keeps their paws free to catch even more food.
Sea otters often keep rocks in their pockets, too. They use the rocks to crack open things like clam shells. Sea otters put the rocks on their chests. Then, they smash the shell against the rock. When the shell breaks, the sea otters can eat the tasty treat inside.
How do sea otters use their pockets?
A. They store the food they catch in their pockets.
B. They keep their babies safe inside their pockets.
Choose the right answer from the options and respond with its letter.

A