Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

In a monopolistic market, the monopolist may charge students and elders at a lower price. This type of price discrimination belongs to:
Option A:First-degree price discrimination.
Option B:Second-degree price discrimination.
Option C:Third-degree price discrimination.

Answer: C