A maxillary complete denture exhibits more retention and stability than a mandibular one because it
1. covers a greater area.
2. incorporates a posterior palatal seal.
3. is not subject to as much muscular displacement.
4. is completely surrounded by soft tissue.

(2) and (4)

(1) (2) (3)

(1) and (3)

All of the above.

(4) only