0.05 mole of LiAIH4 in ether solution was placed in a flask containing 74g (1 mole) of t-butyl alcohol. The product LiAIHC12H27O3 weighed 12.7 g. If Li atoms are conserved, the percentage yield is —(Li = 7, Al = 27, H = 1, C = 12, O = 16).
(A) 25%
(B) 75%
(C) 100%
(D) 15%