The song , once interrupted , seems too heavy to lift again , and only Eddie 's mother 's voice , shaking in its solitude , is able to continue . " Happy birthday dear Ed - die . . .
According to the above context, choose the best option to answer the following question.
Question: Who finishes singing the Birthday song ?
Options:
- The Birthday Boy 's Girlfriend
 - The Brother of the Birthday Boy
 - The Sister of the Birthday Boy
 - The Birthday Boy 's Parent


The Birthday Boy 's Parent