25. When the 1,7-diester CH3O2CCH2CH2CH(CH3)CH2CH2CO2CH3 is treated with sodium methoxide and the reaction mixture is
subsequently neutralized with acid, what kind of compound is the major organic product?
(A) a cyclic ẞ-diketone
(B) a cyclic ẞ-ketoester
(C) an acyclic ẞ-diester
(D) an acyclic ẞ-ketoacid
(E) a cyclic ẞ-diketone

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