Which of the following types of statement can be used to explain the steps of a proof?

Check all that apply.

A. Guess

B. Theorem

C. Conjecture

D. Postulate

Theorem and postulate (B and D)

Step-by-step explanation:

We cannot use a guess to prove because we aren't completely sure if the information is correct.

A conjecture is just a kind of an opinion and hence cannot be used to prove a statement.