According to Your Textbook,research on the Placebo Effect Has Shown

According to your textbook,research on the placebo effect has shown that:

A) placebo treatments,unlike active treatments,are not associated with changes in brain activity.
B) placebo and active treatments are both associated with changes in brain activity,but in different areas.
C) placebo and active treatments are associated with similar changes in brain activity.
D) placebo effects are subjective,and thus cannot be investigated with brain imaging.