计算n!的函数过程如下:Private Function fact（n As Integer)As Longf = 1For i = 1 To nf =

计算n!的函数过程如下:

Private Function fact(n As Integer)As Long

f = 1

For i = 1 To n

f = f * i

Next i

(___________________)

End Function

下划线处需要编写的语句是()。

A. f = 1

B. f = fact

C. fact = f

D. 不需要其他任何语句