当你想知道海南夏天的天气情况时，你应这样问：[ ]

A. How's the weather like in summer in Hainan?

B. What's the weather like in Hainan in summer?

C. What's the weather in Hainan in summer?

下列程序的输出结果为______。
Private Sub Command1_Click()
Dim a(20)
For j=1 To 20 Step 2
a(j)=j
Next j
Print a(1)+a(2)+a(3)
End Sub

A．4

B．5

C．6

D．7