The following flow sheet is given, where the molar flow rate of component A and $B$ is shown corresponding to each of the stream $(S1,S2,S,S4$ and $S.$ The reaction occurring in the reactor is $AB.$ The values for the overall conversion and single pass conversion of reactant $A$ in the flowsheet are :

a$.$ Overall conversion $=100\%,$ single pass conversion $=33\mathrm{.}33\%$

b$.$ Overall conversion $=50\%,$ Single pass conversion $=50\%$

c$.$ Overall conversion $=100\%,$ Single pass conversion $=66\mathrm{.}6\%$

d$.$ Overall conversion $=25\%,$ single pass conversion $=50\%$

Clear my choice