The title with the √ before it is considered to be the better one. Decide whether the following choi

The title with the √ before it is considered to be the better one. Decide whether the following choice is the correct one.　 A. An Experimental Observation of a Pair of Spin-Polarized Fermi Arc Surface Stateson the Surface of the Dirac Semimetal Na3Bi at Its Native Chemical Potential√ B. Observation of Fermi Arc Surface States in a Topological Metal

A.正确

B.错误

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