Cho hàm số \(y = f\left( x \right)\). Đặt h(x)=3f(x)-x^3+3x

A. \(\mathop {\max h(x)}\limits_{{\rm{[}} - \sqrt 3 ;\sqrt 3 {\rm{]}}}  = 3f\left( 1 \right)\)

B. \(\mathop {\max h(x)}\limits_{{\rm{[}} - \sqrt 3 ;\sqrt 3 {\rm{]}}}  = 3f\left( { - \sqrt 3 } \right)\)

C. \(\mathop {\max h(x)}\limits_{{\rm{[}} - \sqrt 3 ;\sqrt 3 {\rm{]}}}  = 3f\left( {\sqrt 3 } \right)\)

D. \(\mathop {\max h(x)}\limits_{{\rm{[}} - \sqrt 3 ;\sqrt 3 {\rm{]}}}  = 3f\left( 0 \right)\)