Tonsil is derived from:
Ans. B. 2nd pouchPharyngeal PouchDerivatives1Tympanic (middle ear) cavity Auditory (eustachian) tube2Palatine tonsils Tonsillar fossa3Inferior parathyroid gland Thymus4Superior parathyroid gland uitimobranchial body (parafollicular cells of the thyroid gland)