If Sail Away Has 15 Percent of the Market Share

If Sail Away has 15 percent of the market share, Easy Sails has a 30 percent market share, and Big Sails has a market share of 40 percent, according to Chinese law, which of the firm(s) is considered to be a dominant firm?

A) Big Sails and Easy Sails, but not Sail Away
B) Easy Sails, but not Sail Away or Big Sails
C) Big Sails, but not Sail Away or Easy Sails
D) Sail Away, Easy Sails, and Big Sails