Although he is talkative ,he is ----to tell us anything about his family .A willing B recultant C alert D complacent 请问这道题选哪个选项啊?为什么选这个啊?

Although he is talkative ,he is ----to tell us anything about his family .
A willing
B recultant
C alert
D complacent
请问这道题选哪个选项啊?
为什么选这个啊?

B 尽管他很能说,但还是不愿告诉我们……