Alice, Bob and Charlie are one of each type:

- a truth teller (always tells the truth)
- a liar (always lies)
- and a spy (can lie or tell the truth)

They make the following statements:

**Alice**: I am not a truth teller.

**Bob**: I am not a spy.

**Charlie**: I am not a liar.

What type is Charlie?

(A) Truth teller

(B) Liar

(C) Spy

(D) There is not enough information