The correct answer is D. All of the above
Explanation:
In society, there are multiple types of groups that influence our behavior, ideas, values among others and therefore, different types of groups should be used to determined certain behaviors and attitudes such as self-destructive behavior and low-self esteem this includes reference groups which are peer groups people use to measure themselves and therefore groups that directly influence the individual's behavior; but besides this, in-groups or the groups individuals belong to and out-groups or groups individuals do not belong to also influence behaviors and attitudes as individuals tend to modify their behavior and attitude to fit to in-groups and oppose or avoid belonging to out-groups. Considering this, in the case presented the parents need to look at all of the above (reference groups,in-groups, and out-groups).