cryptograpy

please solve part 7 ASAP

6. Cryptoanalysis: Assume the following ciphertext was encrypted using a shift cipher (as in question 4a). Extend the program from question (5) to try all the possible keys and output the corresponding plaintext. MAX ITLLPHKW BL GHM PATM RHN MABGD What was the correct key and plaintext? 7. Cryptoanalysis: Given the ciphertext from question (6) and the fact that it's shift cipher: if you can only try one key to decrypt the message, what will be your best guess and why