The Sanford v. Dred Scott decision intensified national divisions over the issue of slavery and inflamed the North which was generally opposed to slavery. The decision affected slavery in the territories as it made it constitutional despite the Missouri Compromise as the Supreme Court ruled that Congress did not have the authority to prohibit slavery in the territories.
Slavery developed in southern colonies due to large populations of native americans died due to the diseases the colonists brought over and then the indentured servants from england did not have the skill set necessary for cropping/harvesting tobacco but they realized people from africa were used to the labor intensive work and were able to work long hours in the sun which led to the spread of slavery through triangular trade.
The famous doctor that developed the 'suicide machine' in the 1990's is Dr. Jack Kevorkian, a pathologist and an advocate of voluntary euthanasia. He connected to the machine a women that was suffering from Alzheimer's disease and was watching her while she pushed the button and ended her life. He was convicted for first degree murder for this act.
a,b,d,e those are the right answers women at the time did not have equal opportunities