Which description matches Forceful Exertions?

• A. Place higher loads on the muscle, tendons, ligaments, and joints.
• B. The administration of medicines to treat a person.
• C. The prevention of disease by the administration of vaccines.
• D. Visual clues

Answer: (C)

Forceful exertions are about tasks that require a high level of physical effort, which increases the load on the body's musculoskeletal system. The description that matches this is the one stating that higher loads are placed on the muscles, tendons, ligaments, and joints. When you perform heavy lifting, pushing, or pulling with strong effort, these tissues experience greater strain, raising the risk of injuries like strains, sprains, tendonitis, or joint wear, especially with repetitive or awkward motions. Understanding this helps explain why ergonomic design, proper lifting techniques, use of mechanical aids, and task rotation are important to reduce those high-force demands.

The other descriptions don’t fit forceful exertions. Administering medicines to treat a person is about medical treatment, not physical exertion. Preventing disease with vaccines is about disease prevention, not the mechanical load on the body. Visual clues describe information presentation, not physical effort.