Which of the following is empty or void element in HTML?

Concept:

• HTML elements with no content are called empty elements. Empty elements can be closed in the start tag.
• is an empty element without a closing tag (the tag defines a line break).

Explanation:

An empty element is an element of HTML that do not have any child nodes.
 — inserts a line break
 — inserts a horizontal line
 — used to display images
 —  it’s an input
 — defines relationships between the documents
 — changes metadata of your web page
 — inserts a media source

Therefore Option 2 is correct