Question

name a ray (just the letters)

Explanation:

Step1: Recall ray definition

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Step2: Identify rays in figure

In the given figure, rays can be named as $\overrightarrow{BA}$, $\overrightarrow{BC}$, $\overrightarrow{BE}$, $\overrightarrow{BD}$ etc. We can choose one of them.

Answer:

$\overrightarrow{BA}$