Grace collected data from twenty of her friends about the number of pets they have. The median number of pets is two. What does the median say about Grace's data set? OA. Everyone Grace surveyed has two pets. OB. More of Grace's friends have two pets than any other number. Oc. Two is the middle number when the number of pets in the data set is ordered from least to greatest. OD. Two is the difference between the greatest and least number of pets Grace's friends have.