Question 19 of 36 1 Points Dr. Grey teaches General Surgery, and she is interested in measuring her students' knowledge of the subject. In order to do so, she gave the same 50- item test to all four of her classes. Use this information to answer items 16-20. Class A Class B Class C Class D n 30 25 30 20 mean 31.5 30 43 22 median 31 25 45 25 mode 30 20 47 30 If in Class C, the top 10 examinees received a bonus of 5 points, the median of the revised distribution would be the median of the original distribution. O A. equal to O B. higher than O C. lower than