Determine a value of the constant a for which lim g(x) exists and state the value of the limit, if possible. X-> - 1 x2 - 6x ifXS - 1 g(x) = ax - 5 ifx > - 1 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. The limit exists for a = With that value for a, lim g(x) = X-> - 1 O B. There is no value of a for which lim g(x) exists. X- - 1