Explain the origin , organization, evolution of the sugar economy and slavery in Brazil

Slavery in Brazil began long before the first Portuguese settlement was established in 1516, as members of one tribe would enslave captured members of another. Slave trading was part of a highly profitable triangle of trade that spanned the Atlantic. Manufactured goods were traded to the West African coast for slaves, who were shipped to the sugar colonies (the infamous Middle Passage) and sugar, molasses and rum were shipped from the islands to England. For 350 long years, slavery was the heart of the Brazilian economy. ... Slaves were so pivotal to our economy that Ina von Binzer, a German educator who lived here during the late 1800s, wrote: “In this country, the Blacks occupy the main role. They are responsible for all the labor and produce all the wealth in this land.

hello,

the steamboat is your answer.

it seems like its the only form of transportation on the choices.