In a Laboratory Experiment in Which Subjects Were Asked to Taste

In a laboratory experiment in which subjects were asked to taste several wines, and to rate each on flavour, aroma, and other characteristics, it was found that:

A) subjects who participated with a heavy-drinking model consumed significantly more than those with a light drinker
B) subjects who were without a partner consumed significantly more than those with partners
C) subjects who participated with a light drinker consumed significantly more than those with a heavy-drinking model
D) subjects who participated with a heavy-drinking model consumed significantly more than those with a light drinker, but less than those without a partner
E) presence or absence of a partner (of any type) had no effect on the quantity of wine consumed