Why is it important to understand the Holocaust?

Explanation:

The reason why teachers want you to understand the holocaust is because,  it shows/demonstrates fragility of all societies and deepens reflection about contemporary issues that affect societies around the world, such as the power of extremist ideologies, propaganda, the abuse of official power, and group-targeted hate and violence. It also is important cause it teaches you about promotion of human rights; on the nature and dynamics of atrocity crimes and how they can be prevented; as well as on how to deal with traumatic pasts through education.

innocence can be defined as the lack of sin, relating it with the lack of guilt, also it can be a synonime of naivety. most people agree that sins are made out of experiences, intentionally or not, as well as you stop being naive once certain things happen to you throughout your life. so, with this explained, the chosen answers are:

when the boy saw the effects of war, he no longer viewed life as innocent.

the loss of innocence is a result of gaining experience and making mistakes.

one way to define innocence is as a lack of worldly experience or sophistication.