This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cell Membrane and transpo protiens, Subject name: Physiology
[{'content': 'Not a molecular motor: \nSelect and explain. \nA. Kinesin, B. Dynein, C. Actin, D. Myosin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Motor proteins: Molecular motors include the proteins: myosin kinesin dynein They move along a track- microtubules or microfilaments - and pull larger structures such as vesicles, fibers, or paicles. Such movement can be used for intracellular transpo or movement of the cell's entire framework.", 'role': 'assistant'}]