Task: Question Answering
Input (English): Question: In a rare coin collection, all coins are either pure gold or pure silver, and there is initially one gold coin for every three silver coins. With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information, how many total coins are there now in this collection (after the acquisition)?

 Option A: 40

 Option B: 50

 Option C: 60

 Option D: 80

 Option E: 90
Output (English): Option E