Question 18 of 20 : Select the best answer for the question. C = 37 12. 0 2 1 -6 7 18. What is 4C? O A. [48 0 6 4 -24 28 O B. [48 0 3 4 -24 28 O C. 24 0 6 2 24 28 548 0 12 OD. 4 -24 28

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?