Find the Derivative of Y $y = \operatorname { sech } ( 5 \theta ) ( 1 - \ln \operatorname { sech } ( 5 \theta ) )$

Multiple Choice

Find the derivative of y.
- $y = \operatorname { sech } ( 5 \theta ) ( 1 - \ln \operatorname { sech } ( 5 \theta ) )$

A) $1 - 5 \operatorname { sech } ( 5 \theta ) \tanh ( 5 \theta ) \ln \operatorname { sech } ( 5 \theta )$
B) $5 \operatorname { sech } ( 5 \theta ) \tanh ( 5 \theta ) \ln ( 5 \theta )$
C) $\operatorname { sech } ( 5 \theta ) \tanh ( 5 \theta ) \ln \operatorname { sech } ( 5 \theta )$
D) $5 \operatorname { sech } ( 5 \theta ) \tanh ( 5 \theta ) \ln \operatorname { sech } ( 5 \theta )$