By selling a product with 20% profit, how much profit was earned?
I. The difference between cost and selling price is Rs. 40.
II. The selling price is 120 percent of the cost price.  Choose the most appropriate option.
A) I alone sufficient while II alone not sufficient to answer	B) II alone sufficient while I alone not sufficient to answer	C) Either I or II alone sufficient to answer	D) Both I and II are not sufficient to answe	E) Both I and II are necessary to answer
EXPLANATION   Gain = 20%   I. Profit = (S.P.) – (C.P.) = Rs. 40.   Thus, I give the answer. But, II does not give the answer.   answer is (I alone sufficient while II alone not sufficient to answer).
<result>A</result>
By selling a product with 20% profit, how much profit was earned?
I. The difference between cost and selling price is Rs. 40.
II. The selling price is 120 percent of the cost price.