Determine the radius and interval of convergence of the following power series. 9 11 13 X 16 Find the interval of convergence. Select the correct choice below and fill in the answer box to complete your choice. O A. The interval of convergence is {x: x = (Simplify your answer. Type an exact answer.) O B. The interval of convergence is (Simplify your answer. Type an exact answer. Type your answer in interval notation.) The radius of convergence is R =