When you execute <h1>Hello, World</h1>, the resulting text is large in size. Why is this?

A. It is a header
B. All HTML text is large
C. It is body text
D. It is a bug in the interpreter

A. It is a header

Headers in HTML, such as <h1>, <h2>, etc., are used to define headings or titles on a webpage. By default, headers are displayed in larger text size than body text, making them stand out and draw attention.