[USER (data scientist)]: Awesome! Now, how about finding the confidence intervals for the average win/loss ratio of each surface type? Please choose the most suitable confidence level for hard, clay, grass.
A. (1.2654959718677968, 1.3054959718677968); (1.165532187121182, 1.215532187121182); (1.1889036322379533, 1.2559036322379533)
B. (1.2604959718677968, 1.3004959718677968); (1.159532187121182, 1.210532187121182); (1.1839036322379533, 1.2509036322379533)
C. (1.2604959718677968, 1.3104959718677968); (1.159532187121182, 1.220532187121182); (1.1839036322379533, 1.2609036322379533)
D. (1.2851298832875326, 1.2604959718677968); (1.192818903559593, 1.159532187121182); (1.2383437238191124, 1.1839036322379533)
E. None of above

"correct_answer": "D"