The types of conflict in literature are generally categorized into two: internal and external conflict. Internal conflict occurs within a character's mind, such as a struggle with self-doubt or fear. External conflict, on the other hand, happens between a character and an outside force, which could be another character, society, or nature. Therefore, the correct answer is 'internal conflict and external conflict'.

The question asks about the difference between external and internal conflict. The correct answer is that external conflict involves an outside force, such as a person or event, while internal conflict occurs within a character, such as a struggle with self-doubt, fear, or moral dilemma. This highlights the distinction between conflicts that arise from external factors versus those that are rooted in a character's internal struggles.

Conflict is a crucial element in a story as it creates tension, propels the action, and helps develop the characters. It serves as the driving force that pushes the plot forward and keeps the reader engaged. Without conflict, a story would lack the necessary excitement and emotional depth, making it less interesting and compelling.

In literature, tone and mood have distinct meanings. Tone refers to the author's attitude towards the subject, which can be conveyed through word choice and style. On the other hand, mood is the atmosphere or feeling created in the reader by the text. It is the emotional response evoked in the reader by the author's use of language and storytelling.

The tone and mood of a piece of writing can greatly impact the reader's experience because they set the emotional atmosphere and help create a connection between the reader and the text. By establishing a specific tone and mood, the author can evoke certain emotions and reactions from the reader, making the story more engaging and immersive.

The elements of plot in a story include exposition, rising action, climax, falling action, and resolution. Exposition sets the stage and introduces characters, rising action builds tension, climax is the turning point, falling action shows the consequences, and resolution ties up loose ends. The correct choice highlights these five elements.

The purpose of the exposition in a plot is to introduce the background information, setting, and characters of the story. This helps establish the foundation for the narrative and allows readers to understand the context in which the story unfolds. The other options, such as creating suspense or resolving conflict, are related to different parts of the plot structure.