You are given a list of queries separated by new line. Your job is to answer with the query that is the most well-formed or well-structured query in terms of grammar, punctuations, or spelling errors.
Q: How did Louis XIV governed ?
How does asthma pump work ?
What is the difference between amino acid and amino acid residue ?
Is Jesse McCartney is single ?
A: 
What is the difference between amino acid and amino acid residue ?