Answer:
The asnwer to your question is A. tetrahedral compound
Step-by-step explanation:
A tetrahedral is an object that has a central atom surrounded by four other atoms.
Linear chain compounds are materials composed of one-dimensional arrays of metal-metal bonded molecules or ions.
A trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular bipyramid.
An octahedron is a polyhedron with eight faces. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex.
I hope this helps and have a good day!