Which of the Following Differences Are Found Between Well-Practiced and Beginning

Which of the following differences are found between well-practiced and beginning meditators?

A) Well-practiced meditators showed neural activity that was anatomically more distant but still rhythmical.
B) Well-practiced meditators showed more activity but only in highly concentrated and anatomically adjacent areas.
C) Beginning meditators showed little brain change, even after several weeks of practice.
D) There were no differences; any changes occurred quickly with little practice.