Good things come in small packages
everyone can find fault, few can do better
fine feathers make fine birds
when the going gets, tough get
it's better to light a candle than to curse the darkness
these are proverbs make sentences for these

The size of something doesn't make it better or worse.

Everyone can say something or someone is wrong for something, but they can't fix their own faults.

When times are hard the strong willed will push through it.

Try to find a better way and be positive instead of being negative minded.

Explanation:

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.