​It is illegal for a business to price discriminate when selling goods to other businesses unless
Both A & B are true

A) ​Price discounts are cost-justified
B) Discounts are offered to meet competitors' price
C) Either A or B is true

The statement "It is illegal for a business to price discriminate when selling goods to other businesses unless" is false. It is not illegal for a business to price discriminate when selling goods to other businesses as long as the discrimination is not based on certain protected factors, such as race or gender. However, if a business chooses to offer price discounts to some customers and not others, they must have a valid reason for doing so. This reason could be either A or B (cost justification or meeting competitors' prices), so either option would satisfy the legal requirement. Therefore, the correct answer is C, as it indicates that either A or B is true.