Assume That Two Firms (Firm a and Firm B) Operate

Assume that two firms (Firm A and Firm B) operate in the U.S. steel industry. The owner of Firm A writes the following letter to the owner of Firm B: Dear Owner of Firm B,
I have concluded that if we both restrict output such that we each produce only 3 million tons of steel per year, we can both charge a price that will allow us to effectively monopolize the steel market and to maximize our joint profits. If you would like to enter into this agreement with me, please draft a contract that specifies this agreement, and I will be more than willing to meet with you and sign it.
Sincerely,
Owner of Firm A
If this letter were sent in the year 1850, the:

A) owner of Firm A would be guilty of violating antitrust laws.
B) owner of Firm B would be guilty of violating antitrust laws.
C) owners of both Firm A and Firm B would be guilty of violating antitrust laws.
D) owner of Firm B would be guilty of violating antitrust laws only if he drafted and signed the agreement.
E) owners of both Firm A and Firm B would not be guilty of anything because there were no antitrust laws in existence in 1850.