From the options provided, this would be <span>Elastic Clause.
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Answer:
Mainly Trench Warfare was popularized by the use of new mechanized weapons such as Artillery, and also because of the mass victories in the east on germany's side, Russia used these as a form of slowing them down and to protect their troops, but often these trenches hurt these men by disease, starvation, etc.
Black codes were restrictive laws designed to limit the freedom of African Americans and ensure their availability as a cheap labor force after slavery was abolished during the Civil War. Under black codes, many states required Black people to sign yearly labor contracts; if they refused, they risked being arrested, fined and forced into unpaid labor.
Even as former enslaved people fought to assert their independence and gain economic autonomy during the earliest years of Reconstruction. While the codes granted certain freedoms to African Americans—including the right to buy and own property, marry, make contracts and testify in court (only in cases involving people of their own race)—their primary purpose was to restrict Black peoples’ labor and activity. Black people who broke labor contracts were subject to arrest, beating and forced labor, and apprenticeship laws forced many minors into unpaid labor for white planters.
It should be D. because they blockaded the mississippi river.
Answer: Not all people were ready or excepting of this culture because they had just came out of slavery. The idea of a culturally diverse community was very new to people of this time.