A guest wants to know about the fitness center’s facilities, what should the fitness center’s attendant say?（ ）

A、What are you doing now?
B、We have weight-lifting ,rowing, and jogging machines.
C、We also have a billiard room , a bowling alley and an indoor swimming pool.
D、We have qualified life guards on duty form 8:00 a.m. to 8:00 a.m.