Answer: CB, ∠ACD
Explanation:
A ray is where one end goes on forever (like a line) and one end stops at a point. In the given diagram, the only option that names a ray in the drawing is CB. See attached for a visual.
Next, an angle is named by naming one point on the end that creates the angle, a point in the middle that both sides connect to, and the other point on the end that creates an angle. Here, the only correct answer option is ∠ACD. See attached again for another visual.