Answer:
They could hold local tournaments, and also sponsor a tennis team or donate tennis rackets to a school to promote playing of tennis.
Step-by-step explanation:
Prince sports sales will increase when there is a growth in the tennis industry, and to help grow the industry there needs to be a marketing activity that will encourage tennis right from schools.
The young generation will eventually influence tennis in the future. So marketing activities should btarget them by holding local tournaments, and also sponsor a tennis team or donate tennis rackets to a school to promote playing of tennis.