The correct answer is D. all of the mentioned.
A style sheet is a set of instructions that tells a web browser how to display a web page. Style sheets can be created by the author of the web page, the user, or the user agent.
The author of the web page can create a style sheet to control the appearance of the page. The style sheet can be included in the HTML code of the page, or it can be linked to the page from a separate file.
The user can also create a style sheet to control the appearance of web pages. The user’s style sheet is stored in the user’s browser and is applied to all web pages that the user visits.
The user agent is a program that retrieves and displays web pages. The user agent can also apply a style sheet to a web page. The user agent’s style sheet is stored in the user agent and is applied to all web pages that the user agent retrieves.
Here is a brief explanation of each option:
- Option A: Author. The author of the web page can create a style sheet to control the appearance of the page. The style sheet can be included in the HTML code of the page, or it can be linked to the page from a separate file.
- Option B: User. The user can also create a style sheet to control the appearance of web pages. The user’s style sheet is stored in the user’s browser and is applied to all web pages that the user visits.
- Option C: User agent. The user agent is a program that retrieves and displays web pages. The user agent can also apply a style sheet to a web page. The user agent’s style sheet is stored in the user agent and is applied to all web pages that the user agent retrieves.