Final answer:
A. 10,040. The total number of seats in the Wimbledon Club is 10,040.
Step-by-step explanation:
To find the total number of seats in the Wimbledon Club, we need to add the number of red seats, the standing area, and the number of blue seats.
So, the total number of seats = 5750 red seats + 1050 standing area + 3240 blue seats = 10,040 seats.
Therefore, the correct answer is A. 10,040 seats.