In 1948 where did the united nations first use peacekeeping forces

b.   jim crow laws were enacted in northern states.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

health and medicine because people are dying from not being healthy or not strong enough medicine

  the common sense as a pamphlet written by thomas paine. it promoted the independence of the colonies from british rule. the distribution of this pamphlet was great, it reached people everywhere and it was even read aloud at places people met. it also unite the colonists before the revolutionary war.

answer is d