Evaluate the Required Second Order Partial Derivative $f_{x y}(-2,-5)$ , If $f(x, y)=(x-4) \ln \left(x y^{5}\right)$

Multiple Choice

Evaluate the required second order partial derivative.
-Find $f_{x y}(-2,-5)$ , if $f(x, y) =(x-4) \ln \left(x y^{5}\right)$ .

A) 7.5
B) -2.5
C) -1.25
D) -1