To determine if angles e and f are adjacent, we need to check if they share a common ray and a common vertex.
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Common Vertex: Both angles e and f emerge from the same point where the rays originate, so they share a common vertex.
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Common Ray: The angle labeled e is formed by the two leftward rays, whereas the angle labeled f involves one of those rays and the vertical line. If both angles share one of the same rays (the ray that is part of angle e and the vertical line forming angle f), then they share a common ray.
Based on this reasoning, the correct response is:
Yes, they share a common ray.