Moment of Inertia About the X Axis of the Parallelogram $b h ^ { 3 }/ 3$

moment of inertia about the x axis of the parallelogram in image is:

A) $b h ^ { 3 }/ 3$
B) $2 b h ^ { 3 } / 3$
C) $b h ^ { 3 } / 4$
D) $b h ^ { 3 } / 2$