The special Integrating factor that comverts $(y+2e^{-7})dx+(e^{-1}+xy+x)dy=0$ into eract is :

A$)e^{-2}$

B$)lny$

C$)e^3$

D$)x^2$

t$)$ None

A$.$ A

$89$

c$.$

D $D$

E$.E$