If rats are allowed to freely explore a maze without being given a food reward, and later are put in the maze again with a food reward in the goal box, the rats:
a. learn the maze as quickly as rats that have never been exposed to the maze.
b. learn the maze more quickly than rats that have never been exposed to the maze.
c. learn the maze more slowly than rats that have never been exposed to the maze.
d. are unable to learn the maze.

b. learn the maze more quickly than rats that have never been exposed to the maze.

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.

can you explain it better

we need an attachment to see what you are talking about.