Why Did Karl Lashley Fail to Uncover the Area of the Rat'sbrain

Why did Karl Lashley fail to uncover the area of the rat'sbrain in which the memory trace of the maze was stored or located?

A) Memory could not be studied with the relatively crude and simplistic methods that Lashley used in the early 1900s.
B) A rat's memory for maze running is a classically conditioned response and is not localized in one area of the brain, such as the cortex or cerebellum.
C) Lashley was looking in the cerebral cortex for the memory trace, when he should have been looking in the cerebellum.
D) A rat's memory for maze running is not a single memory but a complex set of interrelated memories involving information from multiple senses and is distributed throughout the brain and not localized in the cortex.