Consider the following reaction, and choose the correct option.
$Toluene \xrightarrow[ii. H_3O^+]{i. CrO_2Cl_2, CS_2} P$

• A
  On treating compound $P$ with saturated $NaHCO_3$ solution, brisk effervescence is observed.
• B
  Compound $P$ can be prepared by treating benzene with anhydrous $AlCl_3$ and $CH_3COCl$.
• C
  On treatment with bromine water, compound $P$ gives a white precipitate.
• D
  Compound $P$ is obtained by the hydrogenation of benzoyl chloride with $Pd$ on $BaSO_4$.