Answer:
b. learn the maze more quickly than rats that have never been exposed to the maze.
Step-by-step explanation:
Since the rats are getting rewarded on completing the maze.There is a food reward.So next time they will try to clear the maze fast and smartly than the rats that have never been to the maze.
The rats which already been to the maze will be having memories of the last time they went to the maze.
hence the answer is option b.