"A.M.D. sued Intel in federal court for charging predatory pricing" (NY Times 2008). Both A.M.D. and Intel are producers of computer chips. Which of the following concerns the statement above?

• Intel producing differentiated product with respect to A.M.D.
• Intel having low fixed costs that allow her to be the only profitable firm in the market.
• Intel charging low prices to keep A.M.D. outside of the market.
• Intel practicing price discrimination against A.M.D.