A statement that best describes the graph shown above include the following: C) It is a one-to-one function.
A one-to-one function is a special type of function in which every element of the range is mapped to exactly a single element of its domain. This ultimately implies that, the output values (y-values) of a one-to-one function never repeat themselves.
Additionally, a one-to-one function maps distinct elements of its domain (x-values) to distinct elements of the range (y-values) and as such, it connotes the mapping of two (2) sets.
In this context, we can reasonably and logically deduce that this function is a one-to-one function because it passed the vertical line test as no value of x has two y-values.