Which of the following statements applies to the submandibular lymph nodes?
1. They discharge into the internal jugular nodes.
2. When draining an area of acute infection, they are enlarged, nontender, soft, well defined and movable.
3. They are found medially to the mandible.
4. They drain the anterior palatine pillar, soft palate, posterior third of the tongue

(1) (2) (3)

(1) and (3)

(2) and (4)

(4) only

All of the above.