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: Physiology
Cell shape and motility are provided by - 
Select and explain. 
A. Microfilaments, B. Microtubules, C. Golgi apparatus, D. Mitochondria
B: Microtubules
Answer: B: Microtubules 
Explanation: Functions of Microtubules include determination of cell shape and various cell movements.