consider a dictator game where player 1 divides $10 between himself and player 2 who has to accept the division. which one is true?

consider a  dictator game where player 1 divides $10 between himself and player 2 who has to accept the division. 

which one is true?

A. if 1 is selfish he may give away some money.

B. if 1 is motivated by reciprocity he may give away some money.

C. if 1 is motivated by reciprocity he may give way $10.

D. if 1 is guilt averse he may give away some money.

E. if 1 is motivated by anger-of- blaming-behavior(as in Battigalli, Dufwenberg& smith 2015) he may give away $10.