Bob randomly chooses two 'large' prime numbers, 5 and 13, and then registers with the Certification Authority the pair of integers <65, 5> as his public key. Bob now has a message (document) to send to one of his banks. The content of the message is the integer 53. What is the hash value (message digest) of the document? Enter the hash value in the box provided below: a) 25 b) 22 c) 24 d) 20