Which HTML tag is used to embed an image on a web page?

The tag used to embed an image on a web page is the <img> tag. This tag is specifically designed for displaying images in HTML. It is a self-closing tag, which means it does not require a closing counterpart and can be used effectively to incorporate images into web pages.

The <img> tag requires a few essential attributes, such as src, which specifies the source of the image file, and alt, which provides alternative text for the image if it cannot be displayed. This is important for accessibility reasons and helps with search engine optimization.

Other options do not represent correctly defined tags for embedding images in standard HTML. The <picture> tag, while related to images, is used for specifying multiple sources for responsive images rather than directly embedding a single image. The <photo> and <image> tags do not exist in standard HTML and therefore cannot be used for embedding images. Thus, the <img> tag is the correct choice for this purpose.