Let's analyze the statements:
Statement I: The difference between cost price and selling price is Rs. 40, but no actual cost or selling price is provided.
Statement II: The selling price is 120% of the cost price, but no specific values for cost or selling price are given.
Even when combined, we cannot determine the actual profit earned without knowing the specific cost price or selling price.
So, the correct option is (D): Both statements together are not sufficient to answer the question.