Researchers Attached Light Bulbs to the Shoulders,elbows,wrists,hips,knees,and Ankles of a Model

Multiple Choice

Researchers attached light bulbs to the shoulders,elbows,wrists,hips,knees,and ankles of a model wearing black clothing.In a dark room,with only the light bulbs visible,______.

A) viewers could recognize the unmoving model as human
B) viewers could recognize a moving model as human,but couldn't tell what the model was doing
C) viewers could recognize what a moving model was doing
D) viewers could recognize the gender of a moving model as well as what the model was doing