Answer:
B (Unselfish and helpful)
Step-by-step explanation:
Showing a disinterested and selfless concern for the well-being of others; unselfish. Altruism is manifested in a desire to serve others without regard for any individual rewards. Selfishness, on the other hand, is the desire to please the individual person indulging in his or her own desires.
Examples:
Altruism refers to behavior that benefits another individual at a cost to oneself. For example, giving your lunch away is altruistic because it helps someone who is hungry, but at a cost of being hungry yourself. ... Recent work suggests that humans behave altruistically because it is emotionally rewarding.
Have a great day! :D