If rats are allowed to wander through a maze, they will subsequently run the maze with few errors when a food reward is placed in the maze's goal box. their good performance demonstrates:

Cognitive maps

Cognitive maps are mental representation of the arrangement or layout of one's physical environment. Cognitive maps helps to plan, and locate unfamiliar area, provide directions, and review information. From the question given above, the good performance of rats demonstrates cognitive maps.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.