Answer:
The correct answer is option (a) TOTP
Step-by-step explanation:
Solution
The correct answer is TOTP Because we need randomness and minor probability also change that's why TOTP (Time based One Time Password).
TOTP: A time-based one-time password (TOTP) refers a temporary pass code produced by an algorithm that utilizes the present time of day as one of its authentication factors.
Time-based one-time passwords are normally used for two-factor authentication and have seen growing assumption by cloud application providers.