Final answer:
Clay minerals possess a sheet-like silicate structure. They are part of the silicate mineral group, which forms different arrangements of SiO4 tetrahedra.
Step-by-step explanation:
The mineral group that exhibits a sheet-like silicate structure is C) clays. In silicate minerals, silicon and oxygen form a tetrahedron (SiO4), which is the basic building block of silicate minerals. This SiO4 tetrahedron can be arranged in various structures, including single chains, double chains, sheet-like structures, and three-dimensional frameworks. Clays are characterized by their sheet-like silicate structures, which allow them to have properties like plasticity when wet and considerable strength when fired or air-dried.