What process is illustrated below? S(s) ⇌H2O⇌ S (aq)

A.

Decomposition of a solid

B.

Melting of a solid

C.

Formation of saturated solution of a solid

D.

Sublimation of a solid

Correct answer is C

From the  given equation:
\(S_{(s)} ⇌ S_{(aq)}\) (in the presence of (\(H_2O\))
The solid form has changed to an aqueous solution upon dissolution in water. Due to the presence of the reversible reaction arrow ⇌, the solution (aqueous) formed is saturated, this is because a saturated solution is an equilibrium system