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'.
The Puritans focused on religion and personal experiences in their writings, while the writers of the Revolution era put more emphasis on reason and logic.
