[单选题]已知有下列过程Private Sub Comp(argl As Integer,arg2 As String,Optional arg3 As integer-50)End Sub正确调用此过程的语句是()

A
Comp5 , "abc"
B
Comp (12, "abc", True)
C
Call Comp (5)
D
Comp "proc 1","abc" ,False
正确答案:A
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