Nico is creating a website. Why should Nico make sure to add alt text to his website objects?

Question $101$ options:

for a screen reader to read the text out loud so that the user can understand the image and its purpose

so a user whose first language is not English can read the content

in case he forgets what the object's purpose is when he goes back to make edits

in order to provide scrolling captions for any videos he includes