The replacement policy that can be implemented in practice and performs the best among the replacement policies that can be actually coded is:

The answer is "Least recently used policy".

Explanation:

It is the page replacement policy, which uses a less frequent substitute.  It adds a registry from each frame that includes the last time the program, that views within the frame, and use a "logical clock" for each of the data references, that made to change by a tick.

This replacement strategy is often used to substitute its least currently utilized cache line or page, and it is realistic and best implemented among the substitution policies.

the answer is you.