Elaborate on the central idea of social classes that Countee Cullen depicts in his poem For a Lady I Know. Provide textual evidence for your answer

In this poem, Countee Cullen (1903-1946) uses irony to reveal the ridiculous beliefs that support racism. The notion of a woman, presumably a white woman, firmly believing that, even in Heaven, her class status, based on discriminatory biases that should not be considered godly, will provide her with poor blacks to do everything for her while she sleeps.

Explanation:

There´s also an allusion to biblical notions through the words "heaven," "celestial chores," and "cherubs," signifying the existence of a spiritual afterlife, in which,  this woman seems to absurdly believe racism prevails.

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.