Answer:
c) the presence of other cockroaches enhanced performance, but only in a simple task
Step-by-step explanation:
Zajonc conducted the famous experiment with cockroaches. He designed a couple of different mazes to test whether having an audience of other cockroaches would affect how quickly the roaches ran through the mazes. One was a simple maze, and the other was a more complicated maze.
The experimenters found that cockroaches completed the easy maze more quickly when they had an audience and a pair, but they completed the complicated maze more slowly when they had a pair and an audience. Similar results in humans and this led to his theory of social facilitation. The factor was known as social inhibition.