STD 11 - 4. Chemical bonding and molecular structure — JEE STD 11 Science — Question

$(I)$ cis $- [Co(NH_3)_2(en)_2]^{3+}$      $(II)$ trans $-[IrCl_2(C_2O_4)_2]^{3-}$
$(III)\, [Rh(en)_3]^{3+}$                         $(IV)$ cis $-[Ir(H_2O)_3Cl_3$

$(I)$ $CH_3COO^{\Theta}$          $(II)$ $CH_3O^{\Theta}$ 

$(III)$ $CH_3CH_2^{\Theta}$        $(IV)$ $CH_3SO_3^{\Theta}$

The correct statement($s$) about $P, Q, R$, and $S$ is(are)

($A$) Both $P$ and $Q$ have asymmetric carbon($s$).

($B$) Both $Q$ and $R$ have asymmetric carbon($s$).

($C$) Both $P$ and $R$ have asymmetric carbon($s$).

($D$) $P$ has asymmetric carbon(s), $S$ does not have any asymmetric carbon.