Which of the following could cause phonetic problems for patients with removable dentures?
1. Posterior teeth placed in a buccal position.
2. Excessive bulk in the palatal area.
3. Anterior teeth that are too long.
4. Bilaterally undercut ridges.

All of the above.

(4) only

(2) and (4)

(1) and (3)

(1) (2) (3)