What historical event led to the right to vote on a referendum? A.
the work of the Progressive movement
B.
the acceptance of Oklahoma as a state
C.
the passing of the Organic Act of 1890
D.
the passage of the Nineteenth Amendment

false

explanation:

not always that can be recessionary too

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

i believe the answer is c