What kind of narrative voice can give the audience insight into only a single character's thoughts?

The choice of third person limited as the correct answer is based on its specific narrative perspective, which allows the narrator to share the thoughts and feelings of only one character while remaining outside of the characters' experience. This approach offers a closer connection to that character's inner world, enabling readers to understand their motivations, emotions, and perceptions without access to the thoughts of other characters.

Third person omniscient, on the other hand, provides insights into multiple characters’ thoughts and feelings, which doesn't align with the focus on a single character. Second person narrative directly addresses the reader as “you,” creating an immersive experience but does not delve into any characters’ internal thoughts. First person narrative involves a character telling their own story, which restricts the viewpoint to that character alone and does not utilize a detached observer's perspective.

Third person limited is ideal in scenarios where a deeper, focused exploration of a single character is required while still retaining some narrative distance that can enhance the storytelling.