Task: Question Answering
Input (English): Question: There are 10 students named alphabetically from A to J. What is the Probability that A and D do not sit together if all 10 sit around a circular table?

 Option A: 2/9

 Option B: 2/5

 Option C: 7/9

 Option D: 4/5

 Option E: 8/9
Output (English): Option C