The correct answer is C. He had a tattoo of a rattlesnake on his arm, and as he signed his name, the snake's rattle seemed to wiggle
Step-by-step explanation:
The physical traits of a character include aspects such as the character's height, clothes, general look, and other details that together make a character look in a particular way. In the text presented, the description of the tattoo of the character is part of the physical traits because this is a visual element that makes this character unique and determines the general appearance of the character. According to this, the detail that includes a physical trait is "He had a tattoo of a rattlesnake on his arm, and as he signed his name, the snake's rattle seemed to wiggle."