What was this structure most likely used for? creating terraces for farm fields practicing rituals and ceremonies playing a ball game with stone hoops protecting a city from invading armies

The answer is practicing rituals and ceremonies. Hope his helped : ) 
please mark me brainliest 

The most likely answer from the choices you've provided is: B) practicing rituals and ceremonies. It looks to be some kind of old temple that would be used for that sort of thing. 

A) and C) are incorrect as they're both just ridiculous and based on the size of this structure this would not be used for defending against an army, If it were to be used as "defending" Then it wouldn't have had staircases up all sides therefore it is not D). That leaves the only possible answer is B)

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