In this task, you need to provide the correct option for a given problem on probability from the provided options.

Example input: Problem: in a throw of a coin find the probability of getting a tail ? 
Options: a ) 1 / 2 , b ) 1 / 3 , c ) 1 / 4 , d ) 2 / 5 , e ) 2 / 7
Example output: a
Example explanation: "s = { h , t } e = { t } p ( e ) = 1 / 2 answer is a"
Q: Problem: a question paper has 2 parts , a & b , each containing 8 questions . if a student has to choose 8 from part a & 4 from part b , in how many ways can he choose the questions ? 
Options: a ) 110 , b ) 70 , c ) 120 , d ) 130 , e ) 140
A:
b