This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Testis are developed from? 
Select and explain. 
A. Genital ridge, B. Genital tubercle, C. Wolfian duct, D. Mesonephric duct
A: Genital ridge
Answer: A: Genital ridge 
Explanation: Development of testes Each testis develops from the coelomic epithelium that covers the medial side of the mesonephros,of the corresponding side.in the region where the testis is to develop,this germinal epithelium becomes thickened.this thickening is called genital ridge HUMAN EMBRYOLOGY-INDERBIR SINGH TENTH EDITION-PAGE NO:307