We use the 'alt' attribute in an image tag to:* O Display alternative text to the image when it's not properly rendered. O Display an alternative title on the image. O Change the source of an image when it's not properly displayed. O Setup the height and width of an image. O Display an alternative image on top of the current image. The main difference between "id" and "class" is:* O class must be unique, whereas 'id' can be repetitive. O They are the same, just different terminologies. O 'id' must be unique, whereas 'class' can be repetitive. id' is used to add styles to HTML elements, whereas 'class' is used to group HTML elements. O id is like