Answer:
Correct answer is B peace, prosperity, and flourishing trade.
Explanation:
A is not correct as this period is known as Principate.
B is the correct because it refers to the period between 27 BC to 180 AD during which Roman empire was at the peak of its power and spread peace. Pax Romana actually means Roman peace.
C is not correct as this happened after 313 and Edict of Milan.
D is not correct as this happened in the period between two triumvirates.
The level of immigration between 1930 and 1945 is most directly related to the Great Depression and World War ll. Due to the poor economy with little opportunity for better living standards, very few people were willing to immigrate to the USA.
Recovering from the 1970s. The 1970s were known to be a time of malaise. This was where many American had wanted to return to the economic and social policies of the 1950s. Due to the inefficiencies of the Ford & Carter Administration to tackle High Inflation and The Oil Crisis. Reagan's Administration had brought and idea of "Making America Great Again" to fix the broken Economy that was a result of the 1970s.
D. Khrushchev was the Soviet leader during both the Eisenhower and Kennedy presidencies.