Why Do Many Biologists and Psychologists Consider Altruistic Behavior a Theoretical

Why do many biologists and psychologists consider altruistic behavior a theoretical problem?​

A) Altruism benefits someone else more than the person doing the act.
B) ​So far, researchers have not located the gene responsible for altruistic behavior.
C) ​Most people engaging in an altruistic act do not feel good about it.
D) ​Altruistic acts are more common toward nonrelatives than toward relatives.