Task: Question Answering
Input (English): Question: a is the hundreds digit of the three digit integer x, b is the tens digit of x, and c is the units digit of x. 3a = b = 3c, and a > 0.
What is the difference between the two greatest possible values of x?
Tip: Dont stop till you have exhausted all answer choices to arrive at the correct one.

 Option A: 131

 Option B: 292

 Option C: 394

 Option D: 424

 Option E: 969
Output (English): Option A