Which of the following examples correctly uses an input box to assign a value to an integer, and returns the integer to the calling program using a reference parameter?
a. ```Sub GetInput(ByVal intNumber As Integer)
intNumber = CInt(InputBox(“Enter an Integer”))
End Sub
```
b. ```Sub GetInput(ByRef intNumber As Integer)
intNumber = CInt(InputBox(“Enter an Integer”))
End Sub
```
c. ```Sub GetInput(ByRef intNumber As Integer)
intNumber = CInt(InputBox(“Enter an Integer”))
Return intNumber
End Sub
```
d. ```Sub GetInput()
Dim intNumber As Integer
intNumber = CInt(InputBox(“Enter an Integer”))
End Sub
```
b. ```Sub GetInput(ByRef intNumber As Integer)
intNumber = CInt(InputBox(“Enter an Integer”))
End Sub
```
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