Which Would Be Considered an Example of Cooperativeness Among the Nursing

Which would be considered an example of cooperativeness among the nursing assistant staff?

A) "I just saw one of your residents drop their dentures on the floor. You might want to clean them soon."
B) "I just love sitting in the dining room and visiting with your resident."
C) "While you were helping a resident to the bathroom, I went ahead and delivered your trays to the rest of your team."
D) "When I think about your resident that is so lonely, I just want to march in there and tell them to stop being negative. They are making all of us depressed."