Primex Is a Discount Broker with Offices Across Canada

Primex is a discount broker with offices across Canada.In recent years it has grabbed more than 90 percent of the market for discount brokerage services through a number of innovative practices.Its online services are second to none.The company also has a policy of filling orders almost instantly.Other discount brokers are irked by what they see as Primex's abuse of its dominant position.They are worried Primex is grabbing more and more market share by taking advantage of its presence in every significant town across Canada.If a complaint was made that Primex was engaged in an abuse of dominance,Primex could potentially rely on

A) the defence of due diligence.
B) no defences,and Primex's behaviour would be considered an abuse of dominant position.
C) the defence of superior competitive performance.
D) the defence of vicarious liability.
E) the defence that it does not control the market because it does not have 100 percent of the discount brokerage business.