elect all the correct answers. Ken and Betty each write a proof of the statement: If , then . Four rays A, B, C, and D originate from point O. What two statements describe how Ken and Betty proved ? Ken's Proof StatementsReasons 1. 1. given 2. 2. angle addition postulate 3. 3. subtraction property of equality Betty's Proof StatementsReasons 1. 1. assumption 2. 2. addition property of equality 3. 3. angle addition postulate 4. 4. given 5. 5. by contradiction Betty wrote an indirect proof using contradiction. Ken wrote a direct proof using deductive evidence. Ken wrote an indirect proof using deductive evidence. Betty wrote an indirect proof using deductive evidence. Betty wrote a direct proof using contradiction. Ken wrote a direct proof using contradiction.