What is King’s main purpose in his “I Have a Dream” speech?

to inform listeners of the history of racial inequality and segregation in the United States

to reinforce the idea that, although racial inequality exists, nothing can be done about it

to make people aware of how much racial inequality still exists and persuade them to work for change

to make people aware of racial injustice and inspire them to overthrow the government

to make people aware of how much racial inequality still exists and persuade them to work for change

Explanation:

It can't be the first one, because King's "I Have a Dream" speech was made during a time of severe racial inequality, so he couldn't have been talking about the "history" at that time.

It can't be the second one because the word "dream" can have multiple meanings. In this case, most likely in a hopeful way, and his speech was to make change.

It can't be the fourth one because Martin Luther King didn't want to overthrow the government. His protests were peaceful.

alaska is the answer to this