Final answer:
The best response is to provide a salary range based on research and emphasize flexibility.
Step-by-step explanation:
The best response to the hiring manager's question about salary requirements is to provide a range based on the research you have done on salary.com and other reliable sources. Start with a higher salary rate but emphasize your flexibility. It's also important to clarify benefits and other relevant compensation. Remember to always be professional and friendly in your response.