The invention of the telegraph
a. let distant locations communicate quickly.
b. kept distant locations from communicating quickly.
c. was 50 years after the railroad.
d. was 50 years before the railroad.

Let distant locations communicate quickly.

Explanation:

The Telegraph is a communication system that was created in the eighteenth century, widely used by industries and governments, with the aim of transmitting messages from one point to another, over great distances.

Telegraphs used codes to reliably and quickly transmit information. The main code used by the telegraphs was the Morse code, which came with the creation of an electric telegraph in the 1830s. The telegraph fell out of use after the telephone was created.

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. 

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.