Why alkynide alkylation reaction shown below fails to yield the desired product? What actual major product would be formed in this reaction?

• A. Because the alkyl halide used in this reaction is hindered, an S_N1 reaction will occur instead of an S_N2 reaction.
• B. Because of the use of a weak base, alkynide ions will not be formed for the desired substitution.
• C. Because the alkyl halide used in this reaction is hindered, an elimination reaction will occur instead of a substitution.
• D. Because of the presence of a poor leaving group, a substitution reaction is not possible.

Answer: (C)