What were the roman standards of justice

Why did president lincoln place general mclellan under the command of general halleck? a. mcclellan failed to capture richmond. b. mcclellan was responsible for the north's defeat at the second battle of bull run. c. mcclellan failed to defeat lee at antietam creek.

Which of the following show the new economic ideas were growing in the south in the late 1800s

Who was the 43rd president of the united states? answer and explain ! : )