A.
age=y1-y0 If m1<m0 Then age=age-1 ElseIf d1<d0 Then age=age-1 End If
B.
age=y1—y0 If m1<m0 Or d1<d0 Then age=age-1 End If
C.
age=y1-y0 If m1<m0 Then age=age-1 End If If m1=m0 And d1<d0 Then age=age-1 End If
D.
age=y1-y0 If m1<m0 Then age=age-1 End If If d1<d0 Then age=age-1 End If