Ramu inserted the elements into the Queue Q1 based on his priority. He already maintained a table for elements and their priority. The table has given below. The one element that has the highest number in priority has considering inserted first into the queue.
| Elements | Priority |
| 10 | 8 |
| 8 | 2 |
| 17 | 1 |
| 5 | 20 |
| 12 | 15 |
After inserting all the elements of the table, Ramu is removing the elements one by one. Which element he will remove in the second dequeue operation?
1
10
2
8
3
5
4
12