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

Input: Consider Input: Problem: an unbaised coin is tossed until it shows up the same face in 2 consicative throws wat is the probability that the no of tosses is not more than 4 . 
Options: a ) 3 / 4 , b ) 1 / 4 , c ) 7 / 8 , d ) 1 / 8 , e ) 6 / 8

Output: c


Input: Consider Input: Problem: a question paper has 2 parts , a & b , each containing 5 questions . if a student has to choose 3 from part a & 4 from part b , in how many ways can he choose the questions ? 
Options: a ) 50 , b ) 100 , c ) 152 , d ) 150 , e ) 55

Output: a


Input: Consider Input: Problem: if two dice are thrown together , the probability of getting an even number on one die and an odd number on the other is ? 
Options: a ) 1 / 9 , b ) 1 / 2 , c ) 1 / 1 , d ) 1 / 5 , e ) 1 / 8


Output: b