Concept:
Jackson Pollock (1912--1956) was a leading American painter of the Abstract Expressionist movement. He became internationally famous for developing the revolutionary drip painting (or action painting) technique, in which paint was poured, dripped, or splashed onto a canvas placed on the floor.
Instead of using traditional brushstrokes, Pollock moved around the canvas while dripping paint with sticks, hardened brushes, or directly from cans, creating dynamic, rhythmic compositions.
Step 1: Recall the artist associated with the “drip technique”.
The drip technique was pioneered by Jackson Pollock, making him one of the most influential modern artists of the twentieth century.
\[
\boxed{\text{Drip Technique} \Longrightarrow \text{Jackson Pollock}}
\]
Step 2: Examine the given options.
• Hans Hofmann -- German-American Abstract Expressionist and influential art teacher.
• Jackson Pollock -- Pioneer of the drip painting (action painting) technique.
• Alfred Stieglitz -- Renowned American photographer and promoter of modern art.
• Georgia O'Keeffe -- American modernist painter famous for flowers and landscapes.
Hence,
\[
\boxed{\text{(B) Jackson Pollock}}
\]