What Is the Primary Challenge of Studying Participants Whose Brains

Multiple Choice

What is the primary challenge of studying participants whose brains have been accidentally damaged?

A) researchers have no control over the location or extent of the damage.
B) individuals with damaged brains are less likely to consent to being studied by researchers.
C) Researchers have difficulty obtaining an adequate sample size.
D) Ethics committees prohibit research with people who have suffered damage to their brains.