A nurse is collecting data from a group of clients. Which of the following images indicates a client the nurse should identify as exhibiting clubbing of the fingers?

A. This image shows Heberden's and Bouchard's nodes, which are bony enlargements of the finger joints typically associated with Osteoarthritis. B. This image clearly shows the loss of the normal angle between the nail and the nail bed (Lovibond angle). The fingertips appear enlarged and "drumstick-like," and the nails have a distinct downward, convex curvature. C. This image displays Ulnar Drift (the fingers slanting toward the pinky side) and joint swelling, which are classic manifestations of Rheumatoid Arthritis. It also shows age-related lentigines (liver spots) on the skin.