Correct Option: D

altruist altruist (N.) : someone who makes charitable donations intended to increase human wellbeing egoist (N.) : a person who thinks that he/she is better than other people and who thinks and talks too much about himself fatalist (N.) : a person who believes that events are decided by fate and cannot be controlled humanist (N.) : a person who believes that solving human problems with the help of reason is more important than religious beliefs.