“The United States should help free nations resist the spread of communism” best describes a belief held by President Truman that led to the establishment of the Truman Doctrine.
The Truman doctrine’s main purpose is for the United States to help in opposing the spread communist ideals around the world.
C- colonization era
Constitution era obviously isnt it
Reform era was known as the progressive era
the early republic era had to with transfer of govt
thus leaving colonization era as the last option
The best and most correct answer among the choices provided by the question is the second choice, modeling social behavior for all classes.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
<span>"The Battle of Antietam was one of the most important events of the American Civil War.
... The battle ended the Confederate invasion of Maryland in 1862 and
resulted in a Union victory. It also led to President Abraham Lincoln
issuing the Preliminary Emancipation Proclamation on September 22, 1862."
These are not my words, there from study.com / hope this will help you
</span>
It is a an increase in scientific and medical discoveries improved life expectancies
