Final answer:
Maxwell's behavior indicates a professional attitude most closely related to etiquette, which encompasses respect, communication, and support for one's role and responsibilities in the workplace.
Step-by-step explanation:
Maxwell's behavior would most be indicative of his professional attitude toward etiquette. This aspect of professionalism includes maintaining a professional appearance, treating everyone with respect, being focused at work, demonstrating support for the company's goals, providing excellent customer service, showing a positive attitude and enthusiasm, and respecting the authority of your manager. It refers also to the ability to communicate effectively in the workplace, adhering to basic communication practices, responding to emails promptly, and preserving confidentiality when required. Therefore, looking closely at the behaviors encouraged, it's clear that they align most closely with the principles of workplace etiquette, which includes respecting colleagues, managing your own responsibilities with minimal oversight, and communicating clearly and professionally.