It is said that there're millions of camels in India and ____ of them is still increasing.    [ ]

A. the number    

B. the amount    

C the quantity

D. a number

BSP的过程分类，按其生命周期四个阶段划分，下面( )过程属于需求阶段。

A．财政计划

B．应收款项

C．付账

D．普通会计