Find the Relative Extreme Points For $f ( x ) = x ^ { 3 } + 6 x ^ { 2 } - 15 x$

Multiple Choice

Find the relative extreme points for $f ( x ) = x ^ { 3 } + 6 x ^ { 2 } - 15 x$

A) (5, f(5) ) is a relative extreme minimum point, (-1, f(-1) ) a relative extreme maximum
B) (0, f(0) ) is a relative extreme minimum point
C) (5, f(5) ) is a relative extreme maximum point, (-1, f(-1) ) a relative extreme minimum
D) (-5, f(-5) ) is a relative extreme maximum point, (1, f(1) ) a relative extreme minimum
E) (-5, f(-5) ) is a relative extreme minimum point, (1, f(1) ) a relative extreme maximum