Mark the letter Á, B, c, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

I did not read his book. I did not understand what the lecturer was saying

A. What the lecturer wrote and said was too difficult for me to understand

B. I found it very difficult to understand what the lecturer said in his book

C. I would have understood what the lecturer was saying if I had read his book

D. The lecturer's book which Ĩ had not read was difficult to understand

a)vì BA=BD(gt)

suy ra ΔBAD cân tại B

suy ra ​góc BAD=góc HAC

 ĐÚNG THÌ CHỌN CÂU TRẢ LỜI NÀY NHA !!

đề có bị nhầm không vậy ạ