A Rectangular Patio Has an Area Of $4 m^{3}+24 m^{2}+8 m-48$

Multiple Choice

A rectangular patio has an area of $4 m^{3}+24 m^{2}+8 m-48$ . Find the length if the width is $4 m+8$ .

A) $m^{3}+4 m^{2}-6 m$
B) $m^{2}+16 m-6$
C) $m^{2}-4 m+6$
D) $m^{2}+4 m-6$