The sentence in question is: He is one of those people who thinks he owns the world. To identify errors, let's analyze each segment:
- A: He is one of those people
This segment is correct. It is referring to a subset of people.
- B: who thinks
This segment is erroneous. When referring to "those people," a plural pronoun, the correct verb form should be plural: who think.
- C: he owns the world
This segment follows logically from the subject people. However, in the context of who think, it should follow logically from the plural perspective: they own the world.
Therefore, the correct segments should be: He is one of those people who think they own the world. Hence, segments B and C contain the errors.
The correct choice is: Error in segment B & C.