_______，the farmers continued working in the fields.

A．Late as it is

B．Late as it was

C．Though late it was

D．Although it was as late

有如下程序：　　Private Sub Command1_Click()Dim k As Integer，m As Integer　　　Dim op As Integer　　　k=4：m=1　　　op：PPC(k，m)：Print op；　　　op：PPC(k，m)：Print op　　End Sub　　Private Function，PPC(a As Integer，b As Integer)　　　Static m As Integer，i As Integer　　　m=0：i=2　　　i=i+m+1　　　m=i+a+b　　　PPC=m　　End Function　　程序运行后，输出的结果为()。

A．4 6

B．6 6

C．8 8

D．10 12