Task: Question Answering
Input (English): Question: An enterprising businessman earns an income of Re 1 on the first day of his business. On every subsequent day, he earns an income which is just double of that made on the previous day. On the 20th day of business, he earns an income of:

 Option A: Rs 219

 Option B: Rs 220

 Option C: Rs 20²

 Option D: Rs 20

 Option E: Rs 30
Output (English): Option A