(a) Find the series' radius and interval of convergence. Find the values of x for which the series converges (b) absolutely and (c) conditionally. xn n = 0 1 Vn2 + 9 complete your choice. A. The interval of convergence is [ - 1,1) . (Type your answer in interval notation.) O B. The series converges only at x = (Type an integer or a simplified fraction.) O C. The series converges for all values of x. (b) For what values of x does the series converge absolutely? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The series converges absolutely for (Type your answer in interval notation.) O B. The series converges absolutely at x = (Type an integer or a simplified fraction.) O C. The series converges absolutely for all values of x