Question

what is the name of this figure?

Explanation:

A ray is a part of a line that has one endpoint (here, point C) and extends infinitely in one direction (through point B and beyond). The figure has an endpoint at C and extends towards B and further, so it's a ray named ray CB (or $\overrightarrow{CB}$).

Answer:

Ray (specifically ray \( \overrightarrow{CB} \) or ray CB)