which is defined using the undefined terms point and line?\nangle\ncircle\nparallel lines\nray

Brief Explanations:

An angle is formed by two rays with a common - endpoint (a point). A ray is defined as a part of a line that has one endpoint (a point) and extends infinitely in one direction. So, an angle and a ray are defined using the undefined terms point and line. A circle is defined in terms of a set of points equidistant from a center - point, but also involves the concept of distance. Parallel lines are two lines in the same plane that do not intersect, and their definition mainly focuses on the relationship between two lines.

Answer:

D. ray