In the following, which subject is the safest one to start a conversation （）

A. I’m sorry you can’t.
B. Sure, it’s my pleasure.
C. Well, take things easy.
D. I’ll be glad to.
E. Thank you.
F. Really
G. You’re always welcome.
H. I’m sorry to hear that.

A．angry when the government paid little attention to his ideas
B．pleased when the government did take notice of his plan
C．surprised that the official were interested in his suggestion
D．disappointed at the lack of interest shown in his plan