Final Answer:
The Internet search option that begins with broad subject areas that are subdivided into smaller categories is known as "Directory Search."
Step-by-step explanation:
Directory Search, also referred to as subject directory or subject guide, is an Internet search option that organizes information into hierarchical categories. It starts with broad subject areas, and users can then navigate through the categories to find more specific topics. Unlike search engines, which rely on algorithms to retrieve results based on keywords, directory searches involve human-curated directories that categorize and organize websites.
Users can click through a series of menus to narrow down their search progressively. This method provides a structured approach to exploring information on the web, making it particularly useful when users have a general idea of the topic but need guidance in refining their search.