Refer to the Figure

Refer to the figure.
What do the similarities between the scans in the figure indicate?

A) These scans show the areas of the cortex that are active while subjects who are in a coma (top) and subjects who are alert (bottom) are answering "yes" and "no" to a researcher's questions.
B) These scans demonstrate that neural activity in particular regions is greater in an alert subject (bottom) than in a coma patient (top) .
C) The scans show locations of increased activity in alert subjects (bottom) compared to sleeping subjects (top) .
D) The scans illustrate the similar pattern of reduced activity in the brains of individuals in a coma (top) and those who are sleeping (bottom) .