The best and most correct answer among the choices provided by your question is the second choice or letter B.
The constitution and declaration of independence <span>are two documents that foes Martin Luther king Jr. Refer to as a "promissory note to which every American was to fall heir ."</span>
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B: the constitution and declaration of independence
Explanation:
Martin Luther King, Jr. was an American pastor of the Baptist Church and an activist who carried out crucial work in the United States at the forefront of the civil rights movement for African-Americans and who also participated as an activist in numerous anti-American protests. Vietnam war and poverty in general. For this activity aimed at ending US segregation and racial discrimination through nonviolent means, he was awarded the Nobel Peace Prize. Note in 1964. Four years later, at a time when his work had been geared especially towards opposition to the war and the fight against poverty, was killed in Memphis, as he prepared to attend an informal dinner of friends.
Slate is much more commonly found in wet areas, especially around rivers in the United States, so it wouldn't be very available to Natives who were more inland.