Which of the following statement is correct? (A) Electron gain enthalpy may be positive for some...

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Which of the following statement is correct?
(A) Electron gain enthalpy may be positive for some elements.
\( \mathrm{P} \)
(B) Second electron gain enthalpy always remains positive for all the elements.
W
(C) \( \Delta \mathrm{eg} \mathrm{H}\left(\mathrm{K}^{+}\right)=-\mathrm{IE}(\mathrm{K}) \)
(D) All of these
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