Sorry if this is a little late but im almost positive it is C
<span>The secession of several border states</span>
Should a president die in office, which official succeeds the president if the vice president is unable to assume the role speaker of the house .
The President is responsible for imposing and enforcing the laws written through Congress and, to that stop, appoints the heads of the federal organizations, consisting of the cabinet. The vice president is likewise part of the govt department, ready to assume the Presidency should the need get up.
The constitution explicitly assigns the president the strength to signal or veto regulation, command the defense force, ask for the written opinion of their cabinet, convene or adjourn Congress, grant reprieves and pardons, and receive ambassadors.
The president directs the overseas policy of the us, making key choices about how America acts in the direction of other countries in the world. The constitution makes the president commander in chief of the nation's defense force.
Learn more about president role here:-brainly.com/question/2136022
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If you mean polio then <span>it dropped by 6000 in 1962 or the first year when the vaccine was released</span>
In order to eliminate doubts about the constitutionally
