In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: by selling 16 pens for a rupee a woman loses 5 % . how many for a rupee should he sell in order to gain 18 % ? 
Options: a ) 12 , b ) 14 , c ) 45 , d ) 13 , e ) 65

Output: d


Input: Consider Input: Problem: the cost price of a radio is rs . 4800 and it was sold for rs . 4400 , find the loss % ? 
Options: a ) 8 , b ) 9 , c ) 7 , d ) 6 , e ) 4

Output: a


Input: Consider Input: Problem: the cost of one photocopy is $ 0.02 . however , a 25 % discount is offered on orders of more than 100 photocopies . if steve and dennison have to make 80 copies each , how much will each of them save if they submit a single order of 160 copies ? 
Options: a ) $ 0.32 , b ) $ 0.40 , c ) $ 0.45 , d ) $ 0.48 , e ) $ 0.54


Output: b