Explanation:

- In the given code, each letter is replaced by its position in the alphabet, followed by the position squared.

- For example, 'P' is the 16th letter, so it becomes '3' (since 16 mod 9 is 3), then followed by '16²' or '256', simplified as a series of digits ('1', '8', '5', '2') in sequence.

- For 'PROCESS', this results in 'P', 'R', 'O', 'C', 'E', 'S', 'S' becoming '3', '2', '1', '8', '1', '5', '3', '5', '19', '38'.

- Applying the same logic:

- 'F' is '6', 'R' is '18', 'E' is '5', 'E' is '5', 'Z' is '26', 'E' is '5', 'R' is '18'.

- Code becomes '12185526536'.

Option 2: 12185526536

.