The electron affinity value are negative for A. $$\mathrm{Be} \rightarrow \mathrm{Be}^{-}$$ B. $$\mathrm{N} \rightarrow \mathrm{N}^{-}$$ C. $$\mathrm{O} \rightarrow \mathrm{O}^{2-}$$ D. $$\mathrm{Na} \rightarrow \mathrm{Na}^{-}$$ E. $$\mathrm{Al} \rightarrow \mathrm{Al}^{-}$$ Choose the most appropriate answer from the options given below :