If you have flawed analysis and defective design, you should ...

[Charlie]

If you have flawed analysis and defective design, you should ________.
 
  A) write multiple codes
  B) start all over again
  C) avoid coding completely
  D) stop reviewing your code

Question 2

In the _________ mode the input to the encryption algorithm is the XOR of the current plaintext block and the preceeding ciphertext block; the same key is used for each block.
 
  What will be an ideal response?

[izzat]

Answer to Question 1

D

Answer to Question 2

CIPHER BLOCK CHAINING (CBC)

[Charlie]

Excellent

[Dominic]

Thanks for the timely response, appreciate it