下面可以正确定义两个整型变量和—个字符串变量的语句是______。
A.Dim n,m As Integer,s As String
B.Dim a%,b$,c As String
C.Dim a As Integer,b,c As String
D.Dim x%,y As Integer,z As String

A.Dim
B.Dim
C.Dim
D.Dim