'Many people will walk out of your life but only true friends leaves footprints in your heart'​

Eleanor Roosevelt

Explanation:

I don't know what the question is but maybe your asking who said this, it was Eleanor Roosevelt.

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.

study and put some time and effort into your classes and you’ll do great