Are these sentences grammatically correct?

Which detail belongs in paragraph 5 to support the main idea of the paragraph? a) places to receive acupuncture are increasingly easy to find all across the united states. b) not everyone is necessarily fond of acupuncture; some patients prefer other methods of physical therapy. c) even though acupuncture is a popular chinese treatment, it has grown popular around the world. d) most of the adverse effects of acupuncture that have been reported do not derive from the procedure itself but from improper application.

Which sentences from part 1 of the call of the wild would best serve as evidence of the theme "sometimes survival depends on knowing when not to fight"? buck had accepted the rope with quiet dignity. to be sure, it was an unwonted performance: but he had learned to trust in men he knew, and to give them credit for a wisdom that outreached his own. he had merely intimated his displeasure, in his pride believing that to intimate was to command. but to his surprise the rope tightened around his neck, shutting off his breath. he saw, once for all, that he stood no chance against a man with a club. he had learned the lesson, and in all his after life he never forgot it. that had given them an unfair advantage; but now that it was off, he would show them. they would never get another rope around his neck.

What must i write in a reflective essay body