Answer:
A verb meaning "to engage in an activity for recreation"
Step-by-step explanation:
#1 and #2 automatically wouldn't be the answers because the word 'play' isn't being used to describe a sport being played - monopoly is a board game, not a sport (lol). #3 wouldn't be the answer because the word 'play' isn't a noun, since it isn't being used as, or means a place, person, or thing.
Hope this helps! :D