Answer:
The correct answer is letter "B": The firm be able to charge the low-value customers a lower price than the higher-value customers.
Explanation:
Price discrimination is the practice by which producers charge different prices to different consumers based on factors such as age, income or location to mention a few. This differentiation in prices is always justified by producers with one of those factors otherwise the approach would be considered illegal.
Direct price discrimination is carried out when the firm charges lower prices to an unfavored sector of the market keeping the regular price in sectors where income is higher.