You are creating an HTML5 form. You want the form to automatically suggest and complete input as the user enters. Which code will correctly add this feature?

• A. <form autocomplete="on">
• B. <form autocomplete="off">
• C. <form autocomplete="false">
• D. <form autocomlete="on">

Answer: (A)

Autofill suggestions are controlled by the autocomplete attribute. When you set autocomplete to on on a form, the browser is allowed to offer and fill in previously entered values for the inputs inside that form as the user types. The code snippet shown with autocomplete="on" correctly enables this behavior.

The other snippets fail for specific reasons: autocomplete="off" would prevent suggestions; autocomplete="false" uses an invalid value for this attribute; autocomlete="on" has a misspelling, so it won't be recognized. You could also apply autocomplete to individual inputs for more granular control, but enabling it at the form level is the standard way to activate the feature across the form.