A reactor uses A and $B$ to form the desired product $C.$ The exit stream composition in weight percentage is $),$ and $).$ The reactions are: $A+B2C$ and $A+2BD.$ Determine the Percent conversion of $A$

A$.85$

B$.79$

C$.88$

D$.82$

Selectivity of C to D

A$.10$

B$.8$

C$.12$

D$.6$