Step 1: Recall the reaction
Sodium with alcohol is a reducing mixture (nascent hydrogen). It reduces \(\text{R-C}\equiv\text{N}\) to \(\text{RCH}_2\text{NH}_2\).
Step 2: Result
The amine has one more carbon than R. Option (C).
Final Answer:
The product is RCH\(_2\)NH\(_2\), option (C).
\[ \boxed{\text{(C)}} \]