Answer:
B. Loop
Step-by-step explanation:
The use of loop which is a boolean attribute in HTML is an instruction that specifies a replay of the video once it has ended. It is inputted in this format;
<video controls loop>
<source src="dance.mp4" type=video/mp4">
</video>
To add a video to the HTML web page, the <iframe> element is used. the source would also indicate the video URL. The specification of the dimensions, that is the height and width of the video are also written. The code is now closed with the </iframe> element.