Context: The slide and 3 ft pool it goes into are lots of fun . Mateo loves the slide , but I have to go down with him . Hopefully by next year he 'll be able to go down himself and I can just catch him at the bottom .

Question: Why Ca n't mateo go down the slide alone
Options:
0. None of the above choices .
1. He does nt like the pool
2. He does n't want to
3. He ca n't swim
Answer: 3