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: When did louis pasteur die born ?
What is meant by the term Video Card in a computor ?
Optimize amid changing operating condition in corporate finance ?
What is the octet rule in chem ?
A: 
What is the octet rule in chem ?