Task: Question Answering
Input (English): Question: A retailer marks her goods in such a way that the profit made by selling 50 articles is equal to the selling price of 20 articles. What is the percentage of profit made by the retailer?

 Option A: 66.67%

 Option B: 33.33%

 Option C: 40%

 Option D: 25%

 Option E: 20%
Output (English): Option A