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
Smooth endoplasmic reticulum is associated with: 
Select and explain. 
A. Steroid synthesis, B. Storage of calcium, C. Detoxification, D. All
D: All
Answer: D: All 
Explanation: Functions of smooth endoplasmic reticulum are: Steroid synthesis Calcium storage in muscle Detoxification in liver Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:12