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The Product S is

(H 3 C) 3 C HO 3 S COCH 3 CH 3 O
(H 3 C) 3 C COCH 3 CH 3
(H 3 C) 3 C COCH 3 CH 3 H 3 C
(H 3 C) 3 C H 3 COC CH 3 H 3 C

Correct answer: (H 3 C) 3 C COCH 3 CH 3 H 3 C

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