Answer: Planning
Explanation:
Planning is one of the important function of the management as it provide the various types of data or information at the top level in an organization so that they can make various types of effective decisions for the company.
It is also known as the systematic or the logical process of planning the management function more efficiently and also determining the current status or performance of an organization.
It also establishing the main objective in an organization so that it helps in achieve the main goal and it also helps in crease the productivity and growth of the company.
According to the given scenario, the Aquatic center is one of the company in which the manager is basically engage in the planning management function.
Therefore, Planning is the correct answer.