Which of the following is not correct?

a) First degree price and third degree price discrimination work to increase a firm's profits by more accurately matching willingness to pay to the marginal costs of production

b) First-degree price discrimination works to increase a firm's profits by converting consumer surplus into revenue for the firms, while third degree price discrimination increases a firm's profits by more accurately assessing the willingness to pay of different groups of consumers.

c) Because it focuses on more accurately assessing the willingness to pay of different groups of consumers. Third degree price discrimination will increase a firm's profits more than will first degree price discrimination

d) First degree and third degree price discrimination work to increase a firm's profits by converting consumer surplus into revenue for the firm.