Mashaal Masha
Which expression represents the product of $\left(x^{-6}y^{3}z^{5}\right)$ and $\left(x^{4}z^{5}+y^{8}z^{-7}\right)$? 
Difficulty: Medium
A: 

$x^{-2}z^{10}+y^{11}z^{-2}$

B: 

$x^{-2}z^{10}+x^{-6}z^{-2}$

C: 

$x^{-2}y^{3}z^{10}+y^{8}z^{-7}$

D: 

$x^{-2}y^{3}z^{10}+x^{-6}y^{11}z^{-2}$

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