This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral Cavity, Subject name: ENT
The Waldeyer's group of lymph nodes do not include: 
Select and explain. 
A. Submandibular lymph nodes, B. Tonsils, C. Lingual tonsils, D. Adenoids
A: Submandibular lymph nodes
Answer: A: Submandibular lymph nodes 
Explanation: (a) Submandibular lymph nodes(Ref. Scott Brown, Vol 3; 741)Waldeyer's ring componentsAlso calledLocationAdenoidsLushka's or nasopharyngeal tonsilNasopharynx (in the midline at the junction of the roof and posterior wall)Tubal tonsilsGerlach's tonsilsNasopharynx (on the lateral wall behind the Eustachian tube opening)PalatineFaucial tonsilsOropharynx (in between the anterior and posterior pillars)Lingual tonsils-Posterior 1/3rd , i.e. base of tongueLateral pharyngeal bands and nodules-Posterior pharyngeal wall