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("lphabet.txt"
Do While Not sr.EndOfStream
Dim sw As IO.StreamWriter = IO.File.CreateText("arget.txt"
letter = sr.ReadLine
sw.WriteLine(letter)
sw.Close()
Loop
sr.Close()
```
(A) The alphabet in descending order.
(B) The alphabet in ascending order.
(C) a
(D) z
(D) z
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