Why was slave labor preferred over indentured servants

a.) slaves worked harder than indentured servants
b.) indentured servants became a riskier option and more slaves became available
c.) the colonists wanted a more diverse working population
d.) indentured servants were older and needed more care

Which act is an example of total war?

Political rights for women grew most rapidly on the western frontier primarily because (1) the settlers were influenced by native american indian societies (2) women greatly outnumbered men in the west (3) pioneer life often required men and women to share responsibilities equally (4) immigrants settling in the west brought ideals of gender equality from europe

How does iraqs geographical location ( desert-like environment ) affect it's politcal relationships? i've been stuck on this and i'm giving a lot of points