This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Spleen originates following space of peritoneal cavity: 
Select and explain. 
A. Dorsal mesentry, B. Ventral mesentry, C. Left subhepatic space, D. Infracolic compament
A: Dorsal mesentry
Answer: A: Dorsal mesentry 
Explanation: Dorsal mesentry