Final answer:
Character development is achieved through descriptions, actions, and dialogues, revealing traits and transformations of characters. Environmental factors and character drives influence their choices and development, as seen with McTeague and in the broader context with characters such as Harry Potter and Voldemort.
Step-by-step explanation:
The author develops characters using a variety of techniques such as description, action, and dialogue to reveal their traits, motivations, and transformations. In the given excerpts, character development can be analyzed through direct descriptions—as seen in the portrayal of McTeague in McTeague by Norris—and through the observations of changes in characters like Harry Potter over the course of their narrative journey. Characters are brought to life by detailing their appearances, behaviors, and interactions with others. Particular attention is paid to environmental influences and inherent drives that dictate the character's choices, ultimately shaping their path, as in the case of McTeague's descent into criminality.
Furthermore, characters such as Voldemort in the Harry Potter series are developed through their moral alignment and role in the story. Descriptive tags and behavioral cues signal that a character is an antagonist or protagonist. Additionally, rhetorical devices such as the use of tricksters or dialogue contribute to how the character is perceived and how they develop throughout the story.