From the list of questions, one can infer that a group of friends went on an excursion to a national zoo and saw the animals and the way they were treated.
This is a place where (wild) animals are kept and taken care of for purposes of study, display, or preservation.
Additionally, there is also the debate about the revolutionary concept in the zoo of offering choice and how animals in the zoo have more choice about the way they are treated in the zoo.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about zoology here:
https://brainly.com/question/813185