Which action taken by president andrew johnson triggered his impeachment trial?
a. johnson refused to enforce reconstruction.
b. johnson passed the civil rights act of 1866.
c. johnson ignored the tenure of office act.
d. johnson refused to enforce the fourteenth amendment after it was ratified by the states.

C jackson ignored the tenure of office act

Explanation:

congress member was fired. senate didn't approve they wanted him gone

according to my research (britannica and quizlet) the first settlements were along the huang river because it could give the crops more fertile soil that really it out. this was due to the yellow slit caused by floods of the river.