What best describes a basic postulate of Euclidean geometry?

A basic postulate of Euclidean geometry is that through any two distinct points, there is exactly one straight line that can be drawn. This establishes the foundational concept of lines in the Euclidean plane and serves as a basis for further geometric principles and theorems. Other key postulates include the ability to extend a line segment indefinitely and the fact that a circle can be drawn with any center and radius.