The eccentricity of the hyperbola (x−h)2a2−(y−k)2b2=1\frac{(x-h)^2}{a^2} - \frac{(y-k)^2}{b^2} = 1a2(x−h)2−b2(y−k)2=1 is 5/2\sqrt{5}/25/2. What is the ratio b/ab/ab/a?
1/21/21/2
111
3/23/23/2
222