Kirk Passes a Homeless Person on the Street

Kirk passes a homeless person on the street.Kirk is most likely to help this person if the costs of

A) not helping are small,and Kirk will gain nothing from helping.
B) not helping are small,and Kirk will feel better about himself by helping.
C) helping are large,and Kirk will feel better about himself by helping.
D) helping are small,and Kirk will feel better about himself by helping.