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: Pharmacology
Centrally acting skeletal muscles relaxant is: 
Select and explain. 
A. Carisoprodol, B. Dantrolene, C. Gallamine, D. Succinylcholine
A: Carisoprodol
Answer: A: Carisoprodol 
Explanation: Drugs that act either peripherally or centrally can produce skeletal muscle relaxation. At the periphery, agents (gallamine, succinyl-choline) can either block the neuromuscular junction or directly act on the  muscle (dantrolene). 
Centrally acting muscle relaxant (carisoprodol) selectively depress spinal and supraspinal poly-synaptic reﬂex involved in the regulation of muscle tone. It is used in musculoskeletal disorders associated with muscle spasm.