This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Physiology
Sequence of vesicle transport is: 
Select and explain. 
A. ER - Trans - Cis - Lysosomes, B. ER - Cis - Trans - Cell membrane, C. ER- Lysosomes - Trans - Cis, D. Cis - ER - Trans - Cell membrane
B: ER - Cis - Trans - Cell membrane
Answer: B: ER - Cis - Trans - Cell membrane 
Explanation: Ans. (b) ER - Cis - Trans - Cell membrane(Ref: Ganong, 25th ed/p.44)Proteins are synthesized in rough endoplasmic reticulum - enters Golgi through its cis end - processed inside golgi - packed in secretory vesicles - leaves out of golgi through its trans end - ultimately released out of the cell by fusion of vesicles with cell membrane