In which of the following arrangements, the order is not according to the property indicated against it?

Options

A. `Li lt Na lt K lt Pb` (Increasing metallic radius)
B. `I lt Br lt F lt Cl` (Increasing electron gain enthalpy with negative sign)
C. `B lt C lt N lt O` (Increasing first ionisation enthalpy)
D. `Al^(3+) lt Mg^(2+) lt Na^+ lt F^–` (Increasing ionic size)

Answer

C