What is the probable relationship between the two speakers

A．He explains that her complaint is unnecessary.
B．He tells her that a bus line will be opened.
C．He explains that her complaint is unreasonable.
D．He tells her that bus service will be better than the rail service.

A．The man has never tried to give up smoking.
B．The woman has talked the man into giving up smoking.
C．The man has given up smoking.
D．It’s hard for the man to give up smoking.