All citizens shall be treated equally. A. form a more perfect union B. establish justice C. ensure domestic tranquility D. provide for the common defense

B. establish justice

Explanation:

At the center part of the United States Constitution's preamble lies six objectives of the government. Among which is for the government to "To establish justice, " this implies that the government is saddled with the responsibility to establish a system of laws and courts that is considered fair for every citizen or where all citizens are treated equally.

Hence, in this case, citizens shall be treated equally implies to "establish justice."

b hope this

answer; /// haptic;