\textbf{200-} Element ${}^{11}_{6}\text{C}$ by positron emission transforms into which nuclide?
(1) ${}^{11}_{5}\text{B}$ \hfill (2) ${}^{10}_{5}\text{B}$ \hfill (3) ${}^{12}_{6}\text{C}$ \hfill (4) ${}^{11}_{7}\text{N}$
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\textbf{Calculation Space}
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