Use the substitution $u=sin(x)$ and rewrite the following expression in terms of $u$ :

$y=co{s}^4(x)si{n}^3(x)$

A$)y=u^3-u^5+u^7$

B$)y=u^3+2u^5+u^7$

C$)y=u^2+2u^4+u^6$

D$)y=u^2-2u^4+u^6$

E$)y=u^3-2u^5+u^7$

F$)$ None of the above