Radius and interval convergence

Find the series' radius and interval of convergence. Find the values of x for which the series converges (b) absolutely and (e) conditionally. M 8 (-1)"* 1 ( x + 19) " n = 1 n (19" ) ) The radius of convergence is 1 Simplify your answer.) determine the interval of convergence. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The interval of convergence is (- 20, - 18) (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. A. The series converges absolutely for - 20