If a Claisen Condensation Reaction Is Run Using Methyl Propanoate

If a Claisen condensation reaction is run using methyl propanoate as the reactant, NaOCH₃ is the ideal base. Why is it important to use NaOCH₃ and not NaOCH₂CH₃?

A) NaOCH₃ is a weaker base than NaOCH₂CH₃, and this reaction requires a weaker base.
B) Transesterfication can occur when esters react, and this transesterfication would result in a mixture of products.
C) NaOCH₃ is more soluble than NaOCH₂CH₃ in organic solvents, and this reaction requires a full equivalent of base to proceed. A full equivalent of NaOCH₂CH₃ would not dissolve, so the reaction would not proceed.
D) NaOCH₃ is a stronger base than NaOCH₂CH₃, and this reaction requires a stronger base.