I believe it is C because 8d>200 equals 25. It's hard to explain, but simply because if it wasn't exactly 200, the answer would be different. Let me know if I am incorrect, if I am I am truly sorry.
First you add all the numbers together. So you add 82+93+75+89 to get 339. Once you get that, you divide it by the amount of numbers there are. In this case, it's 4. 339 divided by 4 is 84.75.
