Answer: Primary prevention
Explanation: Primary prevention precedes disease and applies to healthy clients. It is a level of health promotion that is concerned with reducing the incidence and prevalence of diseases. This is achievable because it focuses on preventing the disease before it develops and spreads across the population. Some examples of primary prevention include vaccination, immunization and frequent exercise. The later is what the employer aims to achieve by establishing a physical exercise area in the workplace and encouraging all employees to use it.