How many spatial dimensions are represented by (x, y, z)?

The representation of (x, y, z) corresponds to a system of coordinates that defines positions in three-dimensional space. In this context, x, y, and z represent three different axes, each defining a dimension.

In a three-dimensional space, each of these coordinates is necessary to specify a unique point. For example, the x-axis typically represents width, the y-axis height, and the z-axis depth. When an object or point is described using these three coordinates, it can be located precisely in a three-dimensional framework, which is important in various fields such as physics, engineering, and computer graphics.

Thus, there are three spatial dimensions represented by the mentioned coordinates, making the correct answer three.