Find the Second Derivative of the Function $f(x)=x\left(2 x^{2}-1\right)^{6}$ A) $\left(26 x^{2}-1\right)\left(2 x^{2}-1\right)^{5}$

Multiple Choice

Find the second derivative of the function. $f(x) =x\left(2 x^{2}-1\right) ^{6}$

A) $\left(26 x^{2}-1\right) \left(2 x^{2}-1\right) ^{5}$
B) $6 x\left(2 x^{2}-1\right) ^{5}$
C) $24 x\left(2 x^{2}-1\right) ^{4}\left(26 x^{2}-3\right)$
D) $30 x\left(2 x^{2}-1\right) ^{4}$