I believe the answer is A
To protect from balls, pucks, falls, scrapes, etc.
the surroundings or conditions in which a person, animal, or plant lives or operates.
sources:https://www.google.com/search?q=what+is+enviorment&oq=what+is+enviorment&aqs=chrome..69i57j0l5.4423j0j7&sourceid=chrome&ie=UTF-8
Instruction and physical exercises or games especially in school
