As the youngest of four siblings , I endured my share of torture . We ' ve all grown up to be a loving foursome , but my brother Kurt ( 5 years my senior ) was particulary evil ( in a teasing way ) when I was young . Let me share with you the story of an older brother and his childhood antics .

Based on the preceding passage, choose your answer for question Why did Kurt behave in an evil way when the speaker and their siblings were young ?
Choose your answer from: --He had serious self esteem issues that he dealth with by asserting his power over his siblings; --Because children do n't have a good understanding of right and wrong; --He is a bonafide psychopath and his early behavior is a clear reflection of this; --He has always derived pleasure from causing others to suffer as much as possible;
The answer is:
Because children do n't have a good understanding of right and wrong