[USER (data scientist)]: Finally, I intend to perform a linear regression for each type of surface to identify any patterns. Considering the resolution, I would also like to pose a question: What could have been the performance of the players in 2012 based on which different surfaces?

A. accustomed, hard,
B. accustomed, clay,
C. not accustomed, hard,
D. not accustomed, clay
E. None of above

[YOU (AI assistant)]: