What is the structure of C? | vedclass

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(D) The reaction sequence is as follows:$1$. Friedel-Crafts acylation of benzene with succinic anhydride in the presence of $AlCl_3$ gives $4$-oxo-$4$

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(D) The reaction sequence is as follows:$1$. Friedel-Crafts acylation of benzene with succinic anhydride in the presence of $AlCl_3$ gives $4$-oxo-$4$-phenylbutanoic acid $(A)$.$2$. Clemmensen reduction of $A$ using $Zn-Hg/HCl$ reduces the keto group to a methylene group,yielding $4$-phenylbutanoic acid $(B)$.$3$. Intramolecular Friedel-Crafts acylation of $B$ in the presence of $conc. H_2SO_4$ leads to the formation of $\alpha$-tetralone $(C)$,which is $1,2,3,4$-tetrahydronaphthalen-$1$-one.

What is the structure of $C$?

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