Migration changes the population of a place, therefore, the distribution of the population is uneven in the country. Migration increased the slum areas in cities which increase many problems such as unhygienic conditions, crime, pollution etc. so, unmanaged migration can be a Great threat in population management.
The answer is a. Good luck
The Tariff of 1828 was a protective tariff passed by the Congress of the United States on May 19, 1828, designed to protect industry in the northern United States. Created during the presidency of John Quincy Adams and enacted during the presidency of Andrew Jackson, it was labeled the "Tariff of Abominations" by its southern detractors because of the effects it had on the antebellum Southern economy. It set a 38% tax on 92% of all imported goods.
I believe the answer is B Blockade runners