Charles bought a box of fruit that contain only oranges and tangerines there were five oranges for every three tangerines in the box there were 20 oranges in the box which of the following proportion can be used to find X the number of the tangerines in the box A. 5/8 = x/20 B. 5/8 = 20/x C. 5/3 = x/20 D. 5/3 = 20/x