I'm pretty sure he only abdicated once. :)
D. The British Army thought it would be too challenging to fight across the Appalachian Mountains.
Answer:
It was deeply involved due to Cuba being around 90 miles off of the coast of Florida, if nukes were on the island, the range could reach almost all of Mainland America. Also, President Kennedy of the USA had told Premier Khrushchev that Soviet nukes are not allowed on the Island of Cuba.
The answer is Morrill Tariff.
During the administration of the democrat President James Buchanan, the Morrill Tariff was adopted in the United States on March 2, 1861. This Tariff greatly aided northern industrial interests. The bill was passed on 1860 during the 1860 election.