Question

which one is a ray?

Explanation:

Step1: Recall ray definition

A ray has one - endpoint and extends infinitely in one direction.

Step2: Analyze options

Options a and b are line - segments as they have two endpoints. Option c is a line as it has no endpoints and extends infinitely in both directions. Option d has one endpoint and extends infinitely in one direction, so it is a ray.

Answer:

d