Which Set of Conditions Will Accomplish the Following Transformation

Which set of conditions will accomplish the following transformation?

A) 1) 1.05 eq.LDA,inverse addition -78°C 2) Ethanal 3) H₃O⁺/heat
B) 1) 0.98 eq.LDA -78°C to 0°C 2) Ethanal 3) H₃O⁺/heat
C) 1) 1 eq.NaOMe -78°C 2) Ethanal 3) H₃O⁺/heat
D) 1) 1 eq.NaOMe 20°C 2) Ethanal 3) H₃O⁺/heat