Premise: Beginners who can stay afloat can learn to breathe through the tube and peer through the mask in minutes.
Hypothesis: If you can't stay afloat as a beginner, you are going to be left behind by the naturally talented.
Is the hypothesis entailed by the premise?
Pick from:
[a]. yes.
[b]. it is not possible to tell.
[c]. no. And the answer is:
[b].