The Competition Bureau Has Long Suspected HAL Corp of Abuse

The Competition Bureau has long suspected HAL Corp of abuse of dominant position.After a recent investigation,the Bureau commenced proceedings against the company.Which of the following statements is most likely to be TRUE?

A) The Bureau may rely on the concept of "superior competitive performance" to prove that,as a result of committing a practice of engaging in anti-competitive acts,HAL has increased its market share.
B) HAL has engaged in an anti-competitive act if it sells its products for a price that is lower than its cost for the purpose of eliminating a competitor.
C) The Bureau will be concerned about anti-competitive acts by HAL if HAL has more than 20 percent of the relevant market.
D) HAL cannot be held liable for abuse of dominant position unless it enjoys a monopoly with respect to at least a part of the market.
E) Because of the need to promote healthy competition,HAL would not be engaged in an anti-competitive act if it was buying up products to prevent the erosion of price levels.