BRAINLIEST ANSWER! PLEASE HELP ME! which is the main reason why thorin refuses to part with any of the hoard of thror

a. thorins love of treasure overpowers his sense of justice
b. thorin is angry with the elvenking
c. bard insults him, and claims he is not the true king under the mountain
d. thorin wants to fight a war for the treasure and prove his strength as king