Which Is True of the Claisen Condensation?
A) the Product $\alpha$

Which is true of the Claisen condensation?

A) The product is an $\alpha$ -ketoester.
B) The enolate formed undergoes a nucleophilic acyl substitution reaction with a second molecule of ester.
C) The condensation can occur under both acidic and basic conditions.
D) The starting materials are an ester enolate and an aldehyde or ketone.