Answer: no article is provided therefore I will take an educational guess in many stories the protagonist either gets into a conflict or starts a conflict therefore I think Jefferson did a bad deed in school therefore he got in trouble
Explanation:
A. they focused on monopolies
The beginning of 1917 was a very turbulent period during the follow of events of the WWI. Germany announced in January, it would engage against any Allied shipping using its submarine force. In February of that same year the president Wilson told the Congress that the US had broken diplomatic relations with the German government.
In march of that year Germany sank five US vessels, contributing to the already unstable American society. The british propaganda in the US and the deep economical involvement with the Allies carried the country to finally enter the War.
I'd go with C, D and F. The main causes of population growth had to do with diet and hygiene and health care.
The Agricultural Revolution (which started in the 17th century) led to better food production and thus better diet and nutrition for people, so healthier lives.
The Industrial Revolution (beginning in the mid 18th century) pushed cities to create better sanitation methods to avoid cholera and other disease epidemics.
And the ongoing advances in medicine ever since the Scientific Revolution were doing their part also to increase lifespans.
