正态曲线下、横轴上，从均数μ到μ+1.96的面积为（）。

A.95%

B.90%

C.47.5%

D.50%

E.49.5%

—Neither Mary nor her friends _________ joined the music club because they have no time. 

— It’s a pity!

A．is

B．are

C．have

D．has