Advertising (APEX Class ;)
Answer:
A. the social facilitation
Explanation:
Social facilitation is the tendency to perform tasks better or faster in the presence of others. People sometimes perform better when they are in groups than they do alone. The presence of others can increase performance on many types of tasks like jogging, playing football, weight lifting, and working on mathematics and computer problems. The presence of a person influences performance.
the total value of goods produced and services provided in a country during one year.
