Which of the Following Reactions Is Associated with the Lattice $\Delta _ { \mathrm { r } } \mathrm { H } _ { \text {lat tice } } ^ { \circ }$

Which of the following reactions is associated with the lattice energy of RbI
( $\Delta _ { \mathrm { r } } \mathrm { H } _ { \text {lat tice } } ^ { \circ }$ ) ?

A) Rb(s) + $\frac { 1 } { 2 }$ I₂(g) ? RbI(s)
B) RbI(s) ? Rb⁺ (g) + I^- (g)
C) RbI(s) ? Rb(s) + $\frac { 1 } { 2 }$ I₂(g)
D) RbI(s) ? Rb⁺ (aq) + I^- (aq)
E) Rb⁺ (g) + I^- (g) ? RbI(s)