The answer is urbanization.
England's southern colonies in North America developed a farm economy that could not survive without slave labor. Many slaves lived on large farms called plantations. These plantations produced important crops traded by the colony, crops such as cotton and tobacco.
And
Throughout the 17th and 18th centuries people were kidnapped from the continent of Africa, forced into slavery in the American colonies and exploited to work as indentured servants and labor in the production of crops such as tobacco and cotton.
These characteristics are describing the Nullification Crisis. (Answer choose b) When Congress raised tariffs once again in 1828, former Vice President from South Carolina John C. Calhoun proposed the nullification issue, claiming South Carolina could make this latest law "null and void" and that states could nullify any law they deemed unconstitutional.
<span>Because they had threatened him.</span>
