Answer: The last step in a proof contains the conclusion.
Step-by-step explanation:
A two-column proof contains a table with a sensible series of statements which are listed on the left and reasons which are listed in the right to reach a result or conclusion. Each statement in the proof is written with reason which can be postulates, theorems, given or definition to confirm each steps are correct to approach the conclusion which always written in the last step of the proof.
