Blake Is an Accomplished Vocalist and Dreams of Performing on a Nationally

Blake is an accomplished vocalist and dreams of performing on a nationally televised talent show someday.After a series of unsuccessful auditions and remaining unselected to advance in the program's screening process,he tells his parents that he was never very good,he will never make it into the vocalist competition,and singing is a waste of time anyway.Inside he begins to think that he will never be happy doing anything but singing,and that he must be a huge failure.His parents worry that he is becoming depressed.Blake's psychological state fits with the ____.

A) biological explanation of depression
B) cognitive theory of depression
C) social explanation of depression
D) learning theory of depression