Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.

\mathbf{A}\) \quad \mathrm{O}_{2}^{-}<\mathrm{NO}<\mathrm{C}_{2}^{2-}<\mathrm{He}_{2}^{+}

\mathbf{B}\) \quad \mathrm{C}_{2}^{2-}<\mathrm{He}_{2}^{+}<\mathrm{O}_{2}^{-}<\mathrm{NO}

\mathbf{C}\) \quad \mathrm{He}_{2}^{+}<\mathrm{O}_{2}^{-}<\mathrm{N} \mathrm{O}<\mathrm{C}_{2}^{2-}

\mathbf{D}\) \quad \mathrm{N} \mathrm{O}<\mathrm{O}_{2}^{-}<\mathrm{C}_{2}^{2-}<\mathrm{H} \mathrm{e}_{2}^{+}

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