In the u. s. constitution, the principle "separation of powers" is a)evident because the first three articles describe the three branches of government b)absent because government power is concentrated in one branch of government c)reflected because the amendments list the powers given to the individual people d)missing because the president determines the power and authority of the people

A) Evident because the first three articles describe the three branches of the government, is the correct answer.

Explanation:

The first three articles of US constitution establish the three branches of government on the basis of separation of power, the three branches are executive, legislative and judicial. These articles share and separate the power of three branches of government. Each branch checks the action of other branches. The power given to the branches can be divided into express and implied, express powers are mentioned in the constitution while the implied powers are derived from the branch's role.

b.   jim crow laws were enacted in northern states.