An agreement among railroad company owners to not let prices fall below a certain amount was called a
A. trust
B. monopoly
C. gauge
D. pool

B. monopoly

Explanation:

Horizontal monopoly agreement is a form of agreement in which the various firms or companies in the same competitive industry form and arrangement to destroy or reduce competition greatly.

Hence, in this situation, an agreement among railroad company owners to not let prices fall below a certain amount is a perfect example of a Horizontal Monopoly Agreement, which is a form of Monopoly.

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.

to protest slavery i would think it would be a