17. Let ABCD be an isosceles trapezoid having parallel bases AB and CD with AB > CD. Line segments from a point inside ABCD to the vertices divide the trapezoid into four triangles whose areas are 2, 3, 4, and 5 starting with the triangle with base CD and moving clockwise as shown in the diagram below. What is the ratio AB / CD?
(A) 3 (B) 2 + √2 (C) 1 + √6 (D) 2√3 (E) 3√2