A 2013 Study Conducted to Examine the Daily Patterns of Anxiety

A 2013 study conducted to examine the daily patterns of anxiety in those with anorexia nervosa had participants:

A) record the frequency of exercise, body checking, and skipping meals only.
B) record their anxiety levels and eating disorder behaviors six times throughout the day.
C) weigh themselves six times a day and note their anxiety level each time.
D) record their daily level of anxiety at the end of each day and note any eating disorder behaviors.