A Gym Is Offering a New 6-Week Diet Plan for Its

Multiple Choice

A gym is offering a new 6-week diet plan for its members. Members who sign up for the program are weighed and measured once a week for the duration of the program. The owners of the gym want to know if the diet plan actually helps people lose weight. What variable could be a possible confounding factor in determining the cause of weight loss?

A) The person's education level.
B) The person's marital status.
C) The person's social life.
D) The person's exercise routine.