Evaluate the Required Second Order Partial Derivative $f_{y y}(5,2)$ , If $f(x, y)=\frac{-5 y}{5 x+y}$

Multiple Choice

Evaluate the required second order partial derivative.
-Find $f_{y y}(5,2)$ , if $f(x, y) =\frac{-5 y}{5 x+y}$ .

A) $\frac{100}{19683}$
B) $\frac{350}{19683}$
C) $\frac{1490}{19683}$
D) $\frac{250}{19683}$