Given: with median segments , , and Prove: Medians meet at point O. It is given that has median segments , , and . Because ___________, then , , and . The ratios of to is 1, of to is 1, and of to is 1 by substitution. Therefore, , , and are similar to each other. Then the medians meet at point O. What is the reasoning for the second step? A. medians intersect at multiple points B. medians divide each side of the triangle into two parts C. medians intersect at one point D. medians divide each side of the triangle in half