$f ( x ) = 2 x ^ { 4 } + 2 x ^ { 3 } - 4 x ^ { 2 } - 3 x - 6$

Multiple Choice

$f ( x ) = 2 x ^ { 4 } + 2 x ^ { 3 } - 4 x ^ { 2 } - 3 x - 6$

A) [-3,3] by [-3,4]
B) [-2,2] by [-10,-5]
C) [-3,3] by [-10,5]
D) [-5,5] by [-2,1]