Which of the Following Is True Regarding Mateo's Claim That

Which of the following is true regarding Mateo's claim that he could not have a monopoly because Robyn was also operating a tour service?

A) He was correct.
B) He was incorrect; if a company enjoys 70 percent of the relevant market, the court will usually hold that the firm has monopoly power.
C) He was incorrect; if a company enjoys 60 percent of the relevant market, the court will usually hold that the firm has monopoly power.
D) He was incorrect; if a company enjoys 51 percent of the relevant market, the court will usually hold that the firm has monopoly power.
E) He was incorrect; if a company enjoys 40 percent of the relevant market, the court will usually hold that the firm has monopoly power.