单项选择题

要分配一个3×3的单精度类型的数组,正确的数组声明语句是()

A.Dim a(9)AsSingle
B.Dim a(-1 To 1,-5 To -3)As Single
C.Dim a(3,3)As Single
D.Dim a(-3 To 1,-5 To 7)As Single