Answer:
D.
Explanation:
If you look at the graph the Badminton one is not fully on 40 its a bit over it and with the chess it's on 60 so we could assume it's 18 between instead of 20 based on the Badminton graph. Also with the other answers A is wrong because most players for Badminton are younger than 50 on average. B is wrong because 60-42 = 18 not 5. C is wrong because Most of the chess players are above the age of 60 and the badminton players are generally younger than chess.
Hope this helps...