Treatment of benzene with $C O / H C l$ in the presence of anhydrous $A l C l_{3} / C u C l$ followed by reaction with $A c_{2} O / N a O A c$ gives compound X as the major product. Compound X upon reaction with $B r_{2} / N a_{2} C O_{3}$ , followed by heating at 473 K with moist $K O H$ furnishes Y as the major product. Reaction of X with $H_{2} / P d - C,$ followed by $H_{3} P O_{4}$ treatment gives Z as the major product.
The compound Z is:

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Solution

The correct option is A

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