[USER (data scientist)]: Thank you. I am currently analyzing the potential impact of the updated odds on the later rounds of the tournament. Could you help me generate a dataframe that includes the Round, Original Odds, Updated Odds, and Potential Impact Metrics such as Changes in Match Favorites and Shifts in Tournament Dynamics? Please note that the determination of match favorites is based on the assumption that the player with lower odds has a higher likelihood of winning the match. Also, we are not considering the temporal impact for this analysis. Based on this dataframe, could you tell me how many matches were played in the later rounds of the tournament?

A. 176
B. 75
C. 0
D. 139
E. None of Above

"correct_answer": "D"