Which of the following is the primary focus of geometry?

The primary focus of geometry lies in the study of shapes, sizes, and properties of space. This branch of mathematics deals with various aspects of figures and their relationships, including angles, lines, surfaces, and solids. Geometry allows for the exploration of properties such as congruence, similarity, and symmetry within different shapes. It plays a crucial role in practical applications, such as architecture, engineering, and various fields requiring spatial understanding.

Algebraic expressions, statistical data, and arithmetic operations, while important branches of mathematics, do not define the core of geometry. Algebra is mainly concerned with symbols and the rules for manipulating them, while statistics involves analyzing and interpreting data. Arithmetic focuses on basic operations involving numbers. These areas may interact with geometric concepts, but they do not encompass the essence of what geometry is all about.