Which of these is a type of arthritis?

Arthritis refers to a group of more than 100 conditions that cause inflammation and pain in the joints. Each type of arthritis has its own distinct features and causes. Rheumatoid arthritis is an autoimmune disorder characterized by chronic inflammation of the joints. Psoriatic arthritis, associated with the skin condition psoriasis, also results in joint inflammation and can affect both skin and joints simultaneously. Septic arthritis occurs when a joint becomes infected, leading to inflammation.

The choice indicating that all of these are types of arthritis is correct because each type noted is recognized within the medical community as a distinct form of arthritis. They each have specific characteristics and treatment approaches, but they all fall under the broader umbrella of arthritic conditions. Understanding these different types is crucial for diagnosis, treatment, and patient management, as they have varying etiologies and implications for patient care.