visual basic Assume the file Alphabet.txt contains $26$ records, the lowercase letters of the alphabet in ascending order. What is stored in Target.txt after the following code is executed?

Dim letter As String

Dim sr As IO$.$StreamReader $=$ IO$.$File.OpenText$("$Alphabet$.$txt$")$

Do While Not sr$.$EndOfStream

Dim sw As IO$.$StreamWriter $=$ IO$.$File.CreateText$("$Target$.$txt$")$

letter $=$ sr$.$ReadLine

sw$.$WriteLine$($letter$)$

sw$.$Close$()$

Loop

sr$.$Close$()$