Nina Is a Cheerful and Positive Person

Nina is a cheerful and positive person. Recently she became sad and quiet due to the passing away of her dog. When her friend asks Nina to help her take her cat to the veterinarian, Nina probably will

A) be more likely to help.
B) be less likely to help.
C) focus more on the costs of helping rather than the rewards.
D) be more concerned with the potential for reciprocity.