What is the commonlit answer key for The Golden Ratio?

d.prevent the spread of communism outside of eastern europe.

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

the speech convinced americans that the ussr was an enemy, rather than an ally, which led to the creation of the truman doctrine.