In Which of the following options the order of arrangement does not agree with the variation of property indicate against it ?

Question

( A ) I < Br < Cl < F (increasing electron gain enthalpy)
( B ) $Al^{3+} + < Mg^{2} + < Na^{+} + < F^–$ (increasing ionic size)
( C ) Li < Na < K < Rb (increasing metallic radius)
( D ) B < C < N < O (increasing first ionisation enthalpy)