In what scenario is it legal for a large group of minors to be in the presence of an adult purchasing alcohol?

In this scenario, it is legal for a large group of minors to be in the presence of an adult purchasing alcohol when the adult orders alcohol while the minors stick to soft drinks. This situation typically arises in a social setting such as a restaurant where the adult is legally allowed to order alcohol for themselves, as long as the minors are not consuming any alcoholic beverages. The law allows adults to purchase alcohol in venues where minors are present, provided the minors do not partake in consuming alcohol themselves, thus making it compliant with regulations regarding serving alcohol to minors.

The other choices do not meet the legal requirements. Simply ordering soft drinks does not justify the presence of minors if alcohol is involved, parental consent does not negate the prohibition against underage drinking, and the legality of alcohol consumption hinges on whether it is being consumed by minors, not merely their age in relation to others present.