Descartes Argues That the Cogito (I Think, Therefore I Am)

Multiple Choice

Descartes argues that the cogito (I think, therefore I am) can serve as the foundation for our knowledge of the external world because it:

A) provides an indubitable principle on which all other claims of knowledge can be based.
B) is accepted by everyone.
C) is backed by reason.
D) is backed by sense experience.