When the Odd Numbers Are Added Successively, Any Finite Sum $( \ldots )$

When the odd numbers are added successively, any finite sum will be a perfect square (e.g., 1 + 3 + 5 = 9 and 9 = 3^2) . What change must be made in the following program to correctly demonstrate this fact for the first few odd numbers? Private Sab btnDisplay_Click $( \ldots )$ Handles btnDisplay.Click
Dim oddNumber As Integer
Dim sum As Integer $= 0$
For i As Integer $= 1$ To 9 Step 2 $\quad$ 'Generate first few odd numbers
oddNumber $= \mathrm { i }$
For $\mathrm { j }$ As Integer $= 1$ To oddNumber Step 2 $\quad$ 'Add odd numbers
sum $+ = j$
Next
lstBox.Iteins.Add (sum & " is a perfect square.")
Next
End Sub

A) Change the Step size to 1 in the first For statement.
B) Move oddNumber = i inside the second For loop.
C) Reset sum to zero immediately before the second Next statement.
D) Reset sum to zero immediately before the first Next statement.