Final answer:
In a personal narrative, the type of detail least likely to convey an author's point of view is objective facts and figures, as they lack the subjective and personal elements typically used to express the author's perspectives.
Step-by-step explanation:
When composing a personal narrative, different types of details can convey the author's point of view. The type of detail least likely to convey an author's point of view is objective facts and figures (A). This is because personal narratives are driven by the author's personal experiences, thoughts, feelings, and reactions, which are subjective in nature. Objective details are just that — factual and unbiased, without the personal touch that characterizes a narrative from the author's perspective. Conversely, interactions with others (B), the author's response to an experience (C), and the author's thoughts or speech (D) are rich with the author's biases, feelings, and personal interpretations, making them very likely ways to express the author’s point of view.