Final answer:
Freud, Jung, and Gestalt are all likely to include music into their practice.
Step-by-step explanation:
All of the above options, a. Freud, b. Jung, and c. Gestalt, are likely to include music into their practice. While Sigmund Freud is known to have used music as a tool in his therapy sessions, Carl Jung also recognized the therapeutic benefits of music. Additionally, the Gestalt approach to psychology emphasizes the importance of holistic experiences and the integration of different elements, including music.