The correct choice is:
The audio clip helps the reader picture the scene and feel the presence of the birds.
The excerpt talks about seabirds flying overhead and the characters excitedly taking pictures of them, but the story does not specify what types of birds they are. Hearing "seagulls" in the audio clip helps bring the scene to life by giving the reader an audible sense of the birds' presence and murmuring sounds. This enhances the positive, joyful tone conveyed through the characters' descriptions of sharing a passion for photography and taking pictures to share with family. The other choices do not accurately reflect how the audio contributes to the tone.
So in summary, the audio clip helps the reader picture the scene and feel the presence of the birds, supporting the tone in a way that the text alone does not.