Question: The ________ attribute in an input element inserts a button that, when click will clear the contents of reset.

Answer:

The `type` attribute with the value of "reset" in an input element inserts a button that, when clicked, will clear the contents of the form inputs and reset them to their initial values.

Here's an example of an input element with the `type` attribute set to "reset":

```html
<input type="reset" value="Reset Form">
```

In the above example, the input element with `type="reset"` will display a button labeled "Reset Form". When this button is clicked, it triggers the form reset action, clearing the user-entered values in the form inputs and reverting them to their original or default values.

It's important to note that the `reset` type is specific to input elements within HTML forms and serves the purpose of resetting form fields.

```html
<input type="reset" value="Reset Form">
```