Company policy requires that ____________ may supply any alcoholic beverages to be served.

The policy governing the supply of alcoholic beverages is typically strict in the aviation industry to ensure compliance with regulations and to maintain safety on board. In this context, Frontier, the airline itself, holds the responsibility for providing alcoholic beverages served during flights. This is in line with Federal Aviation Regulations (FARs) which mandate that carriers must manage and control the serving of alcohol to avoid any issues related to intoxication or unruly behavior among passengers.

By having Frontier, or the airline's designated staff, supply alcoholic beverages, it ensures that these beverages are monitored and provided in accordance with safety protocols. This method of control mitigates risks associated with permitting external parties like passengers or flight attendants from handling or distributing alcoholic beverages, which could lead to violations of both company policy and aviation regulations.

The roles of management and flight attendants are focused on overseeing operations and ensuring passenger safety, but they are not designated to supply alcohol directly under such a policy. Therefore, the correct answer highlights the necessity for an airline's controlled approach to serving alcoholic beverages, placing the responsibility on the company itself.