A. His breathing was shallow, his eyes wide, and his heart beat loud enough to be heard across the room.
* Action: This sentence describes physical actions and reactions: shallow breathing, wide eyes, and a pounding heart.
* Characterization: These actions reveal the character's emotional state – they are likely experiencing fear, anxiety, or intense excitement.
B. He strong muscula?
* Action: This sentence is incomplete and doesn't describe a specific action.
* Characterization: The incomplete phrase suggests the character is physically strong, but it doesn't demonstrate how their strength is used or impacts their personality.
Conclusion:
Sentence A is a better example of characterization through action. It shows the character's emotional state through their physical responses, providing a more tangible and impactful depiction than a simple statement of physical strength.