The teacher ordered the students in 24 ways.
We have given that the total number of students is 4.
4 students are assigned to give presentations.
We have to find the arrangement of the 4 students.
<h3>What is the arrangement?</h3>
An arrangement (or ordering) of a set of objects is called a permutation. (We can also arrange just part of the set of objects.)
In a permutation, the order that we arrange the objects n is important.
4 students can be arranged by 4! ways.
![4!=4*3*2*1\\ =12*2\\=24](https://tex.z-dn.net/?f=4%21%3D4%2A3%2A2%2A1%5C%5C%20%20%3D12%2A2%5C%5C%3D24)
Therefore option 3 is correct.
The teacher ordered the students in 24 ways.
To learn more about the permutation visit:
brainly.com/question/12468032
#SPJ1