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 .
According to the above context, choose the best option to answer the following question.
Question: Why Ca n't mateo go down the slide alone
Options:
- None of the above choices .
 - He does nt like the pool
 - He does n't want to
 - He ca n't swim


He ca n't swim