Answer:

It is a power function.
Step-by-step explanation:
We are given the following function in the question:

We have to check whether the given function is a power function or not.
Power Functions
:
- A power function is of the form:

where a is a constant and not equal to zero and p is a real number.
Comparing the given function, we get:

Hence, the given function is a power function.
A is the correct answer because he did not ask the whole class.
0 because as far as I can see there aren't any purple marbles, correct?