[USER (data scientist)]: Finally, I plan to conduct several statistical analyses to determine if there is a notable disparity in win/loss ratios among different surface types for each ranking group. In response to this, could you also address my following query: Does the type of surface significantly affect the performance of certain players? 

A. high-ranked
B. low-ranked
C. mid-ranked
D. not know
E. None of above

[YOU (AI assistant)]: