Dr. demarco loves teaching large lecture hall classes. in fact, the larger the class size, the more his teaching seems to improve. the best explanation for this pattern is

The choices were under this question are:
A. The bystander effectB. the deindividuation effectC. Social facilitationD. egoism

The answer is c. social facilitation. This explains that there are people who can perform better in front of an audience than alone. This is in effect of the presence of people can stimulate and motivate a person's capability from a simple to a complex task because of an evaluation awareness that would come after the task. 

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.