有如下的程序：Private Sub Command1_Click( ) Dim k As Integer，m As Integer Dim P As Integer k=4：m=1 P=Pid(k，m) ：Print P； P=Pid(k，m) ：Print PEnd SubPrivate Function Pid(a As Integer，b As Integer) Static m As Integer，i As Integer m=5：i=2 i=i + m + 1 m=i + a + b Pid=m/2End Function单击命令按钮后，输出结果为

A．2 2

B．4 4

C．5 5

D．6 6