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Question:You need to read the entire contents of a file named Message.txt into a single string variable. Which code segment should you use?

A string result = null; 
 StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadLine(); 
B string result = string.Empty; 
 StreamReader reader = new StreamReader("Message.txt"); while (!reader.EndOfStream) {
 result += reader.ToString(); 
 } 
C string result = null; 
 StreamReader reader = new StreamReader("Message.txt"); result = reader.Read().ToString(); 
D string result = null; 
 StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadToEnd();

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Question:You need to read the entire contents of a file named Message.txt into a single string variable. Which code segment should you use?

A string result = null; StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadLine();

B string result = string.Empty; StreamReader reader = new StreamReader("Message.txt"); while (!reader.EndOfStream) { result += reader.ToString(); }

C string result = null; StreamReader reader = new StreamReader("Message.txt"); result = reader.Read().ToString();

D string result = null; StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadToEnd();

D

A string result = null;
StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadLine();

B string result = string.Empty;
StreamReader reader = new StreamReader("Message.txt"); while (!reader.EndOfStream) {
result += reader.ToString();
}

C string result = null;
StreamReader reader = new StreamReader("Message.txt"); result = reader.Read().ToString();

D string result = null;
StreamReader reader = new StreamReader("Message.txt"); result = reader.ReadToEnd();