Answer:
<input type="checkbox" name="likeCats" value="likeCats" checked>likeCats
<input type="checkbox" name="likeDogs" value="likeDogs">likeDogs
Explanation:
In HTML, you can add checkboxes by using the <input type="checkbox"> tag. To add it to a form where the user can submit the selection, you can encapsulate the input inside a form as in the example below:
<!DOCTYPE html>
<html>
<body>
<h1>Checkboxes:</h1>
<form action="submit">
<input type="checkbox" name="likeCats" value="likeCats" checked>likeCats
<input type="checkbox" name="likeDogs" value="likeDogs">likeDogs
</form>
</body>
</html>
