下面的语句中，_________是正确的函数过程头定义。 A: Dim F1 As Function B: Dim F1 As Function(ByVal n%) C: Function F1(ByVal n%) As Integer D: Function F1 As Integer E: Function F1(ByVa F1!) As Integer

‏下面的语句中，_________是正确的函数过程头定义。‌ A: Dim F1 As Function B: Dim F1 As Function(ByVal n%) C: Function F1(ByVal n%) As Integer D: Function F1 As Integer E: Function F1(ByVa F1!) As Integer