A small bakery recorded the number of cakes sold each day for 15 days. The results are summarized in the table below.
| Number of Cakes Sold | Number of Days |
|---|---|
| 5 to 9 | 3 |
| 10 to 14 | 5 |
Which of the following could be the median number of cakes sold per day?
8
12
16
20
