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: What is the propulsion in a car ?
Some tools used by the the paleontologist ?
What degree is needed to an entrepreneur ?
Top ten highest waterfall in th world ?
A:
What is the propulsion in a car ?