Ionization energies of three hypothetical elements are  given below (in kJ/mole)

$\begin{array}{l}\hspace{0.25em} \hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\text{I }\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em} \text{ II }\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\text{II }\\ \mathrm{X}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}122\hspace{0.25em} \hspace{0.25em}\hspace{0.25em}\hspace{0.25em}340\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}1890\\ \mathrm{Y}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}99\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em} 931\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em} 1100\\ \mathrm{Z}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}118\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em} 1220\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}\hspace{0.25em}1652\end{array}$

What could be the value of the first electron affinity of ${\mathrm{z}}^{++}$ in $\mathrm{kJ} {\mathrm{mol}}^{-1}$?

The energy is released when 1 mole of the gaseous atoms collect an electron to form 1 mole of gaseous -1 ions is known as the first electron affinity. This refers to the energy produced when this transition occurs (per mole of X). The values of first electron affinities are negative.

Thus, the option B is correct