The system of slavery began to replace indentured servitude because
africans begin to arrive in the colonies
indentured servants began demanding higher "freedom dues"
the need for a steady supply of low-cost labor increased

either b) they were often feared and despised by other native cultures. or

c) their obsession allowed them to coexist with many other native cultures because of their peaceful nature.

answer; i believe that the correct answer is (tobacco);

calvin taught his followers that human beings needed to follow strict rules to overcome their nature and do good. second choice