The graph and equation of the function f are given.
f(x) = 2x$^3$ + 3x$^2$ - 12x + 1
a. Use the graph to find any values at which f has a relative maximum, and
use the equation to calculate the relative maximum for each value.
b. Use the graph to find any values at which f has a relative minimum, and
use the equation to calculate the relative minimum for each value.
a. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.
OA. The function f has (a) relative maxima(maximum) at $\boxed{}$ and the relative maxima(maximum) are(is) $\boxed{}$
(Use a comma to separate answers as needed.)
OB. The function f has no relative maxima.
[-5,5,1] by [-27,27,3]