If a person has different genes for hand clasping preference, they are ___ for that trait

Counterconditioning is a process in which a conditioned stimulus is paired with a stimulus that elicits a response that is incompatible with an unwanted conditioned response

Indicate whether this statement is true or false.

In order for a diagnosis of Alzheimer's disease to be definitively made __________.

A. brain tissue must be examined upon autopsy B. symptoms must be present for over two years C. the afflicted individual must exhibit delirium at least 50 percent of the time D. plaques and tangles must be visible on an MRI