Choice A rationale Rheumatoid arthritis involves autoimmune-mediated synovial inflammation that leads to pannus formation and joint destruction. While maximizing movement is vital, minimizing exertion is not the primary clinical goal. Therapeutic exercise must include controlled resistance to maintain muscle mass and prevent atrophy. Focusing solely on minimizing exertion fails to address the need for functional strengthening required to support unstable joints and maintain long-term physical independence. Choice B rationale Increasing joint size is a pathological sign of inflammation, effusion, or bony overgrowth rather than a therapeutic goal. In rheumatoid disorders, joint swelling or hypertrophy typically indicates active disease progression or osteophyte formation in secondary osteoarthritis. While increasing muscle strength is beneficial, the goal is never to increase the physical size of the joint itself, as this would imply worsening structural deformity or localized edema. Choice C rationale Limiting energy output is sometimes necessary during acute systemic flares to manage fatigue, but it is not the primary goal of an exercise plan. Healing in rheumatoid arthritis is a complex process that requires a balance between rest and activity. Excessive immobility can lead to joint ankylosis, where the joint becomes permanently fused and rigid. Therefore, preserving strength for healing must be balanced with active movement. Choice D rationale The hallmark of rheumatoid arthritis management is maintaining joint function while preventing further mechanical damage. Inflamed joints are highly susceptible to structural injury from high-impact activities. Exercises are designed to preserve the current range of motion and ideally increase it through gentle stretching. Limiting stress ensures that the synovial membrane and cartilage are not further traumatized, which helps to reduce pain and slow the progression of deformity.