Answer:
<h2>D. 10</h2>
Step-by-step explanation:
There are 5 students in each scenario, so we just add 5 and 5 together. The answer is 10.
I'm always happy to help :)
Let's rewrite the binomial as:


Using the binomial expansion, we get:

For the 15th term, we want the term where r is equal to 14, because of the fact that the first term starts when r = 0. Thus, for the 15th term, we need to include the 0th or the first term of the binomial expansion.
Thus, the fifteenth term is: