Find the Derivative Of $f ( x ) = 2 x \sinh ^ { 2 } x$

Multiple Choice

Find the derivative of $f ( x ) = 2 x \sinh ^ { 2 } x$

A) $2 \sinh ^ { 2 } x + 2 x \sinh x \cosh x$
B) $2 \sinh ^ { 2 } x + 4 x \sinh x \cosh x$
C) $2 \sinh ^ { 2 } x + 4 x \sinh x$
D) $4 x \sinh x \cosh x$