What is the purpose of the book 'Apuntes de Filosofía'?
A. To present a brief introduction to the history of philosophical thought.
B. To provide a selection of philosophers and thinkers linked to general culture.
C. To offer an elementary philosophical vocabulary.
D. All of the above.

A. A and B are correct.
B. B and C are correct.
C. A, B, and C are correct.
D. All of the above.