In the accompanying figure CE and DE are equal chords of a circle with center O. Arc AB is a quarter-circle. Then the ratio of the area of triangle CED to the area of triangle AOB is:
[asy]defaultpen(linewidth(.8pt));
unitsize(2cm);pair O = origin;
pair C = (-1,0);
pair D = (1,0);
pair E = (0,1);
pair A = dir(-135);
pair B = dir(-60);draw(Circle(O,1));
draw(C--E--D--cycle);
draw(A--O--B--cycle);label("A",A,SW);
label("C",C,W);
label("E",E,N);
label("D",D,NE);
label("B",B,SE);
label("O",O,N);[/asy]
<spanclass=′latex−bold′>(A)</span>2:1<spanclass=′latex−bold′>(B)</span>3:1<spanclass=′latex−bold′>(C)</span>4:1<spanclass=′latex−bold′>(D)</span>3:1<spanclass=′latex−bold′>(E)</span>2:1