Which of the following properties may have positive values of $$\Delta H$$?

(i) Lattice enthalpy     (ii) Hydration enthalpy

(iii) Electron gain enthalpy for noble gases     (iv) Ionisation enthalpy

A

(i) and (ii)

B

(iii) and (iv)

C

Only (iv)

D

(ii), (iii) and (iv)