Task: Question Answering
Input (English): Question: The probability of a team winning a match given Matt is playing the match is 0.70. The probability of the team winning a match given Matt is not playing the match is 0.5. The probability of Matt playing any match is 0.8.
If it is known that the team has won the last match, what is the probability that Matt played the match?

 Option A: 0.8321

 Option B: 0.8484

 Option C: 0.8571

 Option D: 0.7531

 Option E: 0.8213
Output (English): Option B