What type of shot is specifically a close-up of an actor's face to show detail and emotion?

The correct choice identifies a big close-up as a specific type of shot that focuses on an actor's face to convey detailed expressions and emotions. This type of shot is effective in capturing subtle facial movements and nuances, allowing the audience to connect more deeply with the character's emotional state. The big close-up typically frames the face tightly, often around the shoulders up, emphasizing the actor's expressions without other distractions in the background.

In contrast, an extreme close-up zooms in even more closely to show a particular detail, such as eyes or lips, which may not capture the full facial expression. A long shot presents a broader view of the setting, reducing the visibility of the actor's facial details, while a two-shot includes two characters within the same frame, possibly diverting the focus away from individual emotional expression onto their interactions. Each of these other options serves different narrative purposes and visual storytelling techniques, but they do not specifically highlight emotional detail in the way a big close-up does.