Answer:
"The more a witness's account is told, the less accurate it is.''
Explanation:
This is true. It's like the game telephone. The more you tell a specific thing the more details, information is left out or added-changing it.
Based on these lines from"the gorgon's head" by nathaniel hawthorne is an imperative sentence is: b. "be careful that they do not see you before you see them".
the "imperative" sentence is a command, so i think it's the answer b.
hope this help