The reduced motivation and effort shown by individuals working in group is called social loafing. Social loafing is when person who is part of some group not invest enough effort and she is not motivated to achieve a common goal. This type of people are more productive when they work alone.
Not sure about the context but I would say Christianity
He is widely regarded as the "father of experimental psychology". In 1879, at University of Leipzig, Wundt founded the first formal laboratory for psychological research.
It is true so the answer is A