Marco will be singing with three other people in his glee club's upcoming performance and has put in many hours of practice. Which of the following statements is the best example of how social facilitation is likely to influence his performance? a. Marco will not sing as loudly during the chorus because everyone else is singing very well. b. Marco will sing very well because of the presence of other singers. c. Marco will forget the words to the song because everyone is watching him. d. Marco will payless attention to his personal standards of singing because all the singers are wearing the same costume.

Social facilitation refers to the phenomenon where an individual's performance improves when they are around others or observed by others, as long as the task being performed is simple or well-practiced.

We'll now go through each statement to see which one best aligns with the definition of social facilitation: a. This statement suggests that Marco will not sing as loudly during the chorus because everyone else is singing well. It doesn't necessarily imply that his performance improves due to the presence of others; instead, it seems he's altering his volume. b. This statement says that Marco will sing well because of the presence of other singers. It suggests that his performance improves due to the presence of others, which aligns with the concept of social facilitation. c. This statement claims that Marco will forget the words to the song because everyone is watching him. This statement is more related to performance anxiety, rather than social facilitation, as it implies a negative impact on his performance. d. This statement indicates that Marco will pay less attention to his personal standards of singing because all the singers are wearing the same costume. It suggests that he might feel more relaxed or a part of the group, but not necessarily that his performance improves with the presence of others.

Based on the analysis of the statements, option (b) "Marco will sing very well because of the presence of other singers." is the best example of social facilitation. This statement aligns with the concept that an individual's performance on a simple or well-practiced task improves due to the presence of others.