When Karl Lashley Investigated the Brain Mechanisms Involved in Learning;he

When Karl Lashley investigated the brain mechanisms involved in learning;he:

A) made 'mental maps' by studying the bumps and valleys of the skull.
B) studied the neurological differences using brain imaging.
C) measured the EEG activity in trained and untrained animals.
D) damaged specific brain areas of animals and observed how this impacted learning and memory.