Find the Indicated Derivative $f_{x} f(x, y, z)=10 x^{8} y^{8}+3 x^{7} z^{4}+5 y^{3}$

Multiple Choice

Find the indicated derivative.
-Find $f_{x} f(x, y, z) =10 x^{8} y^{8}+3 x^{7} z^{4}+5 y^{3}$

A) $80 x^{7}+21 x^{6}$
B) $640 x^{7} y^{7}+84 x^{6} z^{3}$
C) $80 x^{7} y^{8}+21 x^{6} z^{4}$
D) $80 x^{8} y^{7}+12 x^{7} z^{3}$