Final Answer:
The narrator's voice or attitude toward this story is serious and intent (Option C).
Step-by-step explanation:
The narrator's voice or attitude is conveyed through the tone and language used to narrate the story. In this context, the terms "serious" and "intent" suggest that the narrator is focused and earnest in delivering the narrative. This choice is likely reflected in the style of language, the level of engagement with the subject matter, and the overall demeanor conveyed through the storytelling. An indifferent and bored tone (Option A) or an amused and intrigued tone (Option B) would imply a different emotional and intellectual stance that does not align with the description of the narrator's voice in the given question.
Option C is the answer.