Task: Question Answering
Input (English): Question: If 10 ounces of a strong vinegar solution are diluted with 50 ounces of water to form a four-percent vinegar solution, what was the concentration of the original solution?

 Option A: 20%

 Option B: 24%

 Option C: 25%

 Option D: 28%

 Option E: 30%
Output (English): Option B