被誉为“东方文化的宝库”的是（）。

A．上海松江唐经幢

B．北京房山云居寺石经

C．四川乐山大佛

D．重庆大足石刻

— How about your job-hunting?

— No luck. Now, I've reached the stage________I don't care what I do.[ ]

A. which          

B. where          

C. when        

D. that