Task: Question Answering
Input (English): Question: A box contains 3red, 5yellow and 4 green balls. 3 balls are drawn randomly. What is the probability that the balls drawn contain balls of different colours?

 Option A: 2/7

 Option B: 3/11

 Option C: 1/4

 Option D: 3/7

 Option E: 2/9
Output (English): Option B