find binomial series

QUESTION 8 Find the binomial series for the function f ( x ) = VI+x O A. 1+ (- 1)"+ 1. 3.5... (2n-3) n =1 n ! O B. DO (-1) "+ 2.4.6... (2n) 1+ 1 =1 n ! 2" O C. E (- 1) "+ 1.3.5. .. (2n-3) n =1 n ! 2" OD. (- 1) " 1 . 3.5... (2n+ 1) 1 + n =1 n ! 2 ( 2n + 1 ) O E. None of the above