Which of the following statements are correct about the reaction given below?

Options

A. In the formation of (D) from (C), ring expansion takes place
B. The product (D) is cyclopentanone
C. The product (D) is `alpha, beta`- unsaturated cyclopentanone
D. Conversion of (B) to (C) can also be carried out with LAH

Answer

A, B, D

Explanation