instruction:
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'.
question:
Problem: the calendar of the year 2028 can be used again in the year ? 
Options: a ) 2041 , b ) 1951 , c ) 2056 , d ) 1971 , e ) 1973
answer:
c


question:
Problem: in a restaurant , the profit is 120 % of the cost . if the cost increases by 12 % but the selling price remains constant , approximately what percentage of the selling price is the profit ? 
Options: a ) 30 % , b ) 49 % , c ) 90 % , d ) 100 % , e ) none of these
answer:
b


question:
Problem: an inspector rejects 0.02 % of the meters as defective . how many will he examine to reject 2 ? 
Options: a ) a ) 1500 , b ) b ) 10000 , c ) c ) 2500 , d ) d ) 3000 , e ) e ) 3100
answer:

b