Answer:
(b) be insightful and explain what the instruction's intention is.
Explanation:
Required
Which describes a comment in options (a) to (d)
Comments are not meant to replace the original code but to explain what the code is meant to do; so that even if the code gets to a non-programmer, the person will understand what the code is all about.
From (a) to (d), only option (b) fits the above description.
