Task: Question Answering
Input (English): Question: Bill has d animals, 28 of which were sold at a profit of 10% each while the rest were sold at a loss of 20% each. Overall, Bill made neither a profit nor a loss. Which of the following is equal to d?

 Option A: 6

 Option B: 12

 Option C: 18

 Option D: 24

 Option E: 42
Output (English): Option E