function that returns all the j-th elements of i given items

I want to write a function that returns all the j-th elements of i given items. The items contain single cells, ranges of cells or both.

While it is possible to return all elements (test1), the every first elements (test2), i fail to return the every second (or above) elements.

Given a Excel-Table

    B   C   D
2   X   1   333
3   X   2   666
4   Z   3   999

=test1((B2;C2;D2);B3:D3;(B4:C4;D4)) returns X 1 333 Y 2 666 Z 3 999

=test2((B2;C2;D2);B3:D3;(B4:C4;D4)) returns X Y Z

But =test3((B2;C2;D2);B3:D3;(B4:C4;D4)) returns Y 2 3, which is wrong. It should return 1 2 3.

The code of the VBA-functions is the following:

Function Test1(ParamArray argArray() As Variant)
' return all elements of all items = OK
    For Each outer_arg In argArray
        For Each inner_arg In outer_arg
            Test1 = Test1 & " " & inner_arg
        Next inner_arg
    Next outer_arg
End Function

Function Test2(ParamArray argArray() As Variant)
' return only the 1st elemtent of each item = OK
    For Each outer_arg In argArray
        Test2 = Test2 & " " & outer_arg(1)
    Next outer_arg
End Function

Function Test3(ParamArray argArray() As Variant)
' return only the 2nd elemtent of each item = FAILS
    For Each outer_arg In argArray
        Test3 = Test3 & " " & outer_arg(2)
    Next outer_arg
End Function 

How do I address specific elements correctly?

Thank you @TimWilliams for showing me, what I misunderstood and what the cornercase (separate ranges) was. I wrote a solution, which loops over all elements with a simple counter. Works for me.

Function Test4(nmbr, ParamArray argArray() As Variant)
' return only the j-th argument (nmbr) of each element = OK

    For Each outer_arg In argArray
        cnt = 1
        For Each inner_arg In outer_arg
            If cnt = nmbr Then
                Test4 = Test4 & " " & inner_arg.Value
            End If
            cnt = cnt + 1
        Next inner_arg
    Next outer_arg
End Function