The term 'sinewy' most closely means:
A. Athletic.
As a dictionary can show you, the word 'sinewy' is an adjective with the meaning of "consisting of or resembling sinews; with strong muscles and little fat". One synonymous for 'sinewy' is 'athletic'.
Yes more info would be great
A, i think, because i think that is the only one that makes sense.
He allows Poseidon to punish them for being good hosts.