Final answer:
Regina's task of establishing goals and determining actions to achieve them relates to the management function of planning. Answer c) Planning is the correct aspect that describes this managerial task. Planning is essential for setting direction and devising strategies in management.
Step-by-step explanation:
Regina, as the owner and operator of a restaurant, believes that her most important task is establishing goals for the restaurant and deciding what must be done to achieve them. The aspect of management that involves this task is planning, which is answer c) Planning. Planning is the function in which managers set goals and decide the best course of action to achieve these goals. It involves analyzing current situations, anticipating the future, determining objectives, deciding in what types of activities the company will engage, and choosing the strategies to pursue to achieve these objectives.
In the broader context of a modern business like a restaurant, various roles such as top chef, sous chefs, servers, greeters, janitors, and the business manager are all parts of the organizational structure that works towards the goals set forth in the planning stage.