Which of the following properly describes the relationship between the degree of a polynomial and the number of relative extrema it has?(1 point)
The number of relative extrema of a polynomial is equal to the degree.
The number of relative extrema of a polynomial is always one less than the degree.
The number of relative extrema of a polynomial is, at least, one less than the degree.
The number of relative extrema of a polynomial is, at most, one less than the degree.