Part D - Programming in C is 27. Figure QD1 - QD4 show the possible output. Welcome. Please choose your option: . : 1. Finds inverse key 2. Encoding 3. Decoding FIGURE QD1: Main Interface : If user choose Option 1: Find Inverse key Please enter the key value, , User key in The inverse key is FIGURE QD2: Find the inverse If user choose Option 2 Encoding process Please enter the key value, User key in Please enter the plaintext, P TOD You can use number to represent the space The output is The ciphertext, cis CNDL The ciphertext, cis CNDL Computer generate the output and the sipertext FIGURE QD3: Encoding process If user choose Option 3: Decoding process Please enter the key value, , User key in Please enter the plaintext, P CNDL You can use number to represent the space The output is The plaintext, pis TO The plaintext, pis_ITO Computer generate the output and the plaintext II FIGURE QD4: Decoding process is 27. calculate inverse key, encoding and decoding matrix. Use the following information for the program: (7 marks - Project - Psychomotor)