Answer:
The answer is B
Step-by-step explanation:
I did it on khan but if I must explain it you have to add all the number together and then divide by the number of numbers. So you add 16,16,16, 20, 21, 21, 23, 25, 26, 26, 28, 28 and tehn divide by 12 which is 22.16666 which rounds to 22 Hope dis helps :)