佛手具有的功效是（）

A.舒肝和胃，行气止痛，燥湿化痰

B.舒肝破气，止咳化痰，行气止痛

C.舒肝解郁，行气止痛，化湿和胃

D.舒肝解郁，理气和中，燥湿化痰

E.破气消积，舒肝除痞，助阳止泻

—Have you finished your book report?

—Not yet. I couldn’t _______ on it with so loud music next door last night.

A．draw

B．devote

C．direct

D．concentrate