Ok. The exercise was about inserting an image above the paragraph. You learned that in the html language inserting an image is as follow:
<img src="" alt="">
What comes between the quotes just after src=, is a web address of a photo uploaded on the web. In the exercise they asked you to put the photo with the following web address:
This is your first error: you wrote this address : https://www.freecatphotoapp.com/your-image.jpg and your answer was that:
And the right answer was this:
The second part of the exercise was to put an alt. In case the link of the image is broken, you put an alt to tell the viewer, what the photo is all about. The choice is up to you.
Your answer was:
What goes in the alt section is a sentence that describes your photo, not the address of a photo.