This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharyngeal Arches, Subject name: Anatomy
Which of the following is NOT derived from 1st pharyngeal pouch: 
Select and explain. 
A. Middle ear, B. Eustachean tube, C. Tympanic membrane, D. Palatine tonsils
D: Palatine tonsils
Answer: D: Palatine tonsils 
Explanation: Ans. (d) Palatine tonsilsRef. LB. Singh 9th ed. /1118; Fundamental Anatomy By Walter Carl Hartwig /185* First pharyngeal pouch is located between 1st and 2nd pharyngeal arch* Palatine tonsil is a derivative of 2nd pharyngeal pouch* Eustachean tube, Middle ear, mastoid antrum and tympanic membrane is derived from 1st pharyngeal pouch.