The first one is D, the second is C, and the last one is A
Answer would be conflict. Antagonist is essentially the protagonist's enemy.
The correct answer for this question is this one: "to explain the rights of heirs and grandsons." In this excerpt from President Kennedy's 1963 Civil Rights Address, he included the examples of President Lincoln's efforts to end slavery and social and economic oppression in order to explain the rights of heirs and grandsons.
Hope this helps answer your question and have a nice day ahead.
Um i would do age 7-13 and the evedence i dont know ill get back to you on that in about 3-6 minuits ok.