Which HTML element allows for multi-line text input?

The textarea tag is specifically designed to allow for multi-line text input in HTML forms. Unlike the input tag, which is used for single-line input, the textarea can expand vertically and horizontally, accommodating larger amounts of text and enabling users to enter paragraphs or extensive feedback.

The textarea tag provides features such as specifying the number of rows and columns to define the visible area, making it ideal for gathering detailed information from users. This flexibility is essential for applications requiring comments, descriptions, or any input where multiple lines of text are necessary.

In contrast, the input tag is limited to single-line entries, the datalist tag serves as a predefined set of options for possible input values in conjunction with an input field, and the form tag is a container used to group various input elements, including both input and textarea tags. Therefore, selecting the textarea tag correctly identifies the HTML element specifically meant for multi-line input scenarios.