Given below are two statements:
Statement I : The \( \mathrm{N{-}N} \) single bond is weaker and longer than that of \( \mathrm{P{-}P} \) single bond.
Statement II : Compounds of group \( 15 \) elements in \( +3 \) oxidation states readily undergo disproportionation reactions.
In the light of the above statements, choose the correct answer from the options given below:
