54.
The answer is: B
Explanation
The correct answer is B: Serena Williams.
She defeated Vera Zvonareva in the final, 6–3, 6–2 to win the ladies' singles tennis title at the 2010 Wimbledon Championships. It was her fourth Wimbledon singles title and 13th major singles title overall. She did not lose a set during the tournament. Zvonareva was contesting her first major singles final, and became the second lowest-ranked woman to contest the final.