A：come o
B：come u
C：come dow
D：come acro
《通典》记载：阳嘉元年，尚书令左雄改察举之制，待中张衡上疏曰：自初举孝廉，到今二百年，必先孝行；行有馀力，乃草文法耳。今诏书一以能诵章句、结奏案为限，虽有至孝，不当其料，所谓损本而求末者也。文中“损本而求末”的“本”是指（ ）
The movie wasn't _____. He fell asleep halfway through it.
