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

Input: Consider Input: Problem: what is the square root of 0.16 
Options: a ) 0.4 , b ) 0.04 , c ) 0.004 , d ) 4 , e ) 1

Output: a


Input: Consider Input: Problem: the least whole number which when subtracted from both the terms of the ratio 6 : 7 to give a ratio less than 16 : 21 , is 
Options: a ) 3 , b ) 4 , c ) 5 , d ) 6 , e ) 7

Output: a


Input: Consider Input: Problem: the h . c . f of two numbers is 23 and the other two factors of their l . c . m are 11 and 12 . the larger of the two numbers is : 
Options: a ) 338 , b ) 276 , c ) 322 , d ) 231 , e ) 121


Output: b