Let us revise how to find the median
At first you must arrange the numbers from small to big
Let us do that
14, 18, 20, 22, 24, 24
We have 6 numbers we need to find the middle one because the median means middle number in a set of data
But there are 6 numbers the middle numbers are 20 and 22
So the median will be the average of the two number
There is a very important note for the median
If the number of data is even the median will be the average of the middle two numbers as our question, but if the number of data is odd then the median will be the middle number.
The answer is the first choice