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
Find faulty statement regarding muscle spindle: 
Select and explain. 
A. Central zone has no actin and myosin, B. Type 1 nuclear bag fibres has low myosin ATPase activity, C. Peripheral zone has no actin and myosin, D. Type 2 nuclear bag has high level of myosin ATPase activity
C: Peripheral zone has no actin and myosin
Answer: C: Peripheral zone has no actin and myosin 
Explanation: Each muscle spindle has three essential elements: 
(1) A group of specialized intrafusal muscle fibers  with contractile polar ends and a noncontractile center. 
(2) Large diameter myelinated afferent nerves (types Ia and II) originating in the central portion of the intrafusal fibers. 
(3) Small diameter myelinated efferent nerves supplying the polar contractile regions of the intrafusal fibers.