How did the headright system encourage indentured servitude?
a. it guaranteed indentured servants a share of the tobacco crop they cultivated.
b. it ensured that laborers were well-looked after by their employers.
c. it partially covered the cost of transporting workers from england.
d. it promised indentured servants "freedom dues" and sometimes a plot of land.

D. It promised indentured servants "freedom dues" and sometimes a plot of land.

Explanation:

The head right system basically meant that every person residing in Virgina near the 1610 would receive two 50 acres of land or 100 acres together, and every single new settler that came after that and paid for their passage would receive 50 acres of land to grow tobacco, in this understanding, many poor people got their passages paid for by rich people that would make them make a commitment on working for them for 5-10 years with the promise of eventually getting the portion of land they were granted when the came.

social contract theory basically says that all individuals are born equal, and provided a god given right to consent to be governed. american government is based of this

thomas hobbes and john locke said that we are selfish, individualistic, and constantly at war with each other, therefore we need to be controlled. 

government is defined as the legitimate use of force to control human behavior within territorial boundaries, here comes in hobbes and locke.

hobbes takes the part about controlling human behavior. while locke takes the part of legitimate use of force, since force is not legitimate unless there is consent of the people. 

there are basically 3 goals of the government: 1) maintain order by protecting life and property. 2) providing public goods, those which are typically not provided by the public sector, such as roads and education. 3) promote equality be it political, opportunist or outcome equality.