Theorem: A line parallel to one side of a triangle divides the other two proportionately. In the figure below, segment DE is parallel to segment BC and segment EF is parallel to AB: The figure shows triangle ABC with segments DE and DF. Point D is on side AB, point E is on side AC and point F is on side BC. Which statement can be proved true using the given theorem? (6 points) a Segment BD = 32 b Segment BD = 36 c Segment BF = 15 d Segment BF = 18