D. To send and receive email through a web browser
Answer: Option D
Solution (By JKExamLibrary)
A web-based email client (e.g., Gmail, Outlook.com) allows users to access their email accounts through a browser without needing a dedicated email software.
Explanation:
The robots.txt file is a standard used by websites to communicate with web crawlers, indicating which pages or sections should not be crawled or indexed.
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