What would you expect to be the electron-group arrangement around atom A in the following case? Give the ideal bond angles and the direction of any expected deviation.

The answer is "Tetrahedral".

Explanation:

The carbon atom of approximately with four attachments. Its general form is one of a tetrahedron: a polyhedron consisting of 4 triangular sides, six straight edges, and four vertex corners from all faces equilateral triangles. The triangular pyramid is often referred to as the triangular pyramid.

the answer to your question is c