Final answer:
The median is the average of the 20th and 21st values in an ordered list of the data points from a stem-and-leaf plot. Both these values are 24, hence the median is also 24, which corresponds to option C.
Step-by-step explanation:
The question involves finding the median from a stem-and-leaf plot. To find the median, you first need to list out all the data points in order. Based on the information provided, the sorted list of numbers is as follows: 3, 4, 8, 8, 10, 11, 12, 13, 14, 15, 15, 16, 16, 17, 17, 18, 21, 22, 22, 24, 24, 25, 26, 26, 27, 27, 29, 29, 31, 32, 33, 33, 34, 34, 35, 37, 40, 44, 44, 47. There are 40 numbers, so the median will be the average of the 20th and 21st values in this ordered list. Those values are both 24, so the median is also 24. Therefore, the correct answer is 24, which corresponds to option C.