Step 1: Set the definition. A positive rheumatoid factor in the serum defines seropositive rheumatoid arthritis, a chronic autoimmune joint disease.
Step 2: Catalog the presentation. The disease is a symmetrical inflammatory polyarthritis: it strikes many joints at once, mirrors itself on both sides of the body, and produces pain and swelling, particularly in the hands and feet, alongside morning stiffness and nodules.
Step 3: Conclude. Since every listed feature, multiple joint involvement, symmetry, and pain with swelling, is genuinely part of the picture, all of them apply together.
All three descriptors fit, so the combined choice is right.\[\boxed{\text{All}}\]