Identify whether the series summation of 8 open parentheses 5 over 6 close parentheses to the i minus 1 power from 1 to infinity is a convergent or divergent geometric series and find the sum, if possible.

a. this is a convergent geometric series. the sum is 48.

b. this is a divergent geometric series. the sum is 48.

c. this is a convergent geometric series. the sum cannot be found.

d. this is a divergent geometric series. the sum cannot be found.