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
Outer cell mass gives rise to 
Select and explain. 
A. Embryo proper, B. Trophoblast, C. Syncytiotrophoblast, D. None
B: Trophoblast
Answer: B: Trophoblast 
Explanation: It consists of an inner cell mass that is completely surrounded by an outer layer of cells.the second.the cells of the outer layer will later give rise to a structure called trophoblast HUMAN EMBRYOLOGY-INDERBIR SINGH TENTH EDITION-PAGE NO:50