Final answer:
In Zen shiatsu, techniques are applied on a prone client from the head towards the feet, facilitating the flow of energy along the body's meridians.
Step-by-step explanation:
Zen shiatsu is a form of massage that is based on the principles of traditional Chinese medicine. When performing Zen shiatsu techniques on a prone client, the correct direction of the treatment is from the head to the feet. This means that the correct answer to the question would be (a) From the head to the feet. This approach facilitates the flow of energy or Qi throughout the body, which is considered essential for maintaining health and well-being in shiatsu practice. Shiatsu practitioners apply pressure along the meridians or energy pathways of the body using thumbs, fingers, palms, elbows, knees, and feet to promote healing and relaxation.