From the question, we were informed about how Jenny just met Katherine in line at the food court and immediately liked her. In this case the theorist would explain this phenomenon by saying that we have many emotional reactions before we are able to interpret what is going on is RObert Zajonc. Robert Zajonc in 1965 developed theory which is an activation theory, in his theory a drive hypothesis for social facilitation was proposed, this theory give the reason why presence of others organism influence the performance by increasing it sometimes and also decreasing it sometimes.
B. it is fulfilling; in order to achieve a specific goal
Explanation:
Charles Horton Cooley is a well-known American sociologist that possessed this idea that people belong to primary groups because it is fullfilling and they belong to secondary groups in order to achieve a specific goal.