Which of the following reactions will give benzophenone as major product?

(A) Benzoyl chloride + benzene $+\mathrm{AlCl}_3$ (anhyd).

(B) Benzoyl chloride + phenylmagnesium bromide

(C) Benzoyl chloride + diphenyl cadmium

An organic compound, ' $A$ ' with molecular formula $\mathrm{C}_8 \mathrm{H}_8 \mathrm{O}$ on reaction with $\mathrm{I}_2 / \mathrm{KOH}$ gives salt of carboxylic acid ' $B$ ' and a halo-compound ' $C$ '. Compound ' $C$ ' on the reaction with silver powder gives ' $D$ '. The structures of ${ }^{\prime} A^{\prime}$ and ' $D^{\prime}$ are

$$ \text { What are } X \text { and } Y \text { in the following reaction sequence? } $$

The major product in the following reaction sequence is