dude,don't u think its a bit incomplete information.still,lets try.
As i cn guess out frm the data given A is a mixture of P4 and NaOH at moderate anhydrous conditions. unless hydrated conditions these two will not react wid each other.
NaOH + Zn → Na2ZnO2 + H2 ( B )
NaOH + P4 + H2O ( C ) → PH3
NaOH + NH4Cl → NH3 ( D ) gas is evolved.