I'm not sure but it looks like the answer is C
Answer:
In WWI, the tank was slow and unreliable, but effective.
Explanation:
As we know WW1 brought many changes when it comes to war efforts. New techniques were introduced and among them usage pf tanks.
Those tanks were heavy and slow, but still practically unbroachable. They were used for the first time in 1916, but until the end of the war were used more frequent.
The correct answer should be Black men, carpetbaggers, and scalawags.
The black people were emancipated African-American people who joined the local governments. Carpetbaggers were northern politicians who moved south in order to attain wealth and high political power. Scalawags were were southern supporters of the republican party and the reconstruction. All three groups joined southern politics after the Civil War.
