5. 下面关于数组操作正确的是______。(本题5.0分)
A、 Option Base 2
B、 n = 10
Dim a(n) As Integer
C、 Dim a() As Integer
a(1) = 100
D、
Dim a
a = Array(1, 2, 3, 4, 5, 6)

Dim a
a = Array(1, 2, 3, 4, 5, 6)