Question:You are developing a method to hash data with the Secure Hash Algorithm. The data is passed to your method as a byte array named message. You need to compute the hash of the incoming parameter by using SHA1. You also need to place the result into a byte array named hash. Which code segment should you use? 

A Dim objSHA As New SHA1CryptoServiceProvider 
Dim hash() As Byte = objSHA.ComputeHash(message) 
B Dim objSHA As New SHA1CryptoServiceProvider 
Dim hash() As Byte = Nothing 
objSHA.TransformBlock(message, 0, message.Length, hash, 0) 
C Dim objSHA As New SHA1CryptoServiceProvider 
Dim hash() As Byte = BitConverter.GetBytes(objSHA.GetHashCode) 
D Dim objSHA As New SHA1CryptoServiceProvider 
objSHA.GetHashCode() 
Dim hash() As Byte = objSHA.Hash 

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Mohammad Towhidul Islam

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