Refer the given figure of Paramoecum caudatum and se! the option that correctly identifies $A, B, C$ and $D$.
$\begin{array}{llll}\mathrm{A} & \mathrm{B} & \mathrm{C} & \mathrm{D}\end{array}$
(a) Cell wall Cilia Contractile Cytostome vacuole
(b) Pellicle Cilia Contractile Cytostomt vacuole
(c) Pellicle Cilia Macronucleus Cytostomt
(d) Pellicle Irichocysts Macronucleus Cytophar)