What is the purpose of a title in a text?

The purpose of a title in a text is primarily to give readers some idea of its content. A title serves as a concise representation of the main theme or subject of the work, allowing potential readers to understand what the text is about at a glance. It is designed to capture interest and provide insight into the content, guiding readers’ expectations regarding the material that follows. A well-crafted title can hint at the central argument, topic, or key idea of the text, making it easier for readers to decide if they want to engage with the full work.

In contrast, the other options do not accurately reflect the primary function of a title. While an overview of the author's biography or the details of methodology and conclusions may be part of the larger text, the title itself is not meant to contain those specifics. Instead, it succinctly signals the subject matter rather than elaborating on the author's life or summarizing research details.