Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
Refer to the graph below.

In an experiment, rats were placed in a complex maze with several one-way doors so that a rat wandering around would eventually reach the goal box. When a rat reached the goal box, it was returned to its home cage. This was repeated for several days.
Rats were assigned to one of three groups:
• Group 1 was provided food in the goal box every day.
• Group 2 was provided food in the goal box beginning on the 11th day.
• Group 3 was never provided food in the goal box.
Researchers measured how many errors the rats made across trials on the way to the goal box. Results are shown in the graph.
-According to the data in the graph,

A) rats that were never given food made the fewest number of errors as they navigated through the maze.
B) rats in all three groups learned to navigate through the maze at the same level of proficiency.
C) rats receiving food in the goal box from the beginning quickly learned to go there with few errors.
D) rats that were never given food eventually gave up trying to find their way through the maze.