Answer:
The description component
Step-by-step explanation:
When creating a text ad that'll run on Google Search Network, the requirements are
A First headline
A Second headline
A third headline
The Display URL
The First Text Description
The Second Text Description
Path
As highlighted above, there are two description fields in a text ad; both of which are 90 characters long,
The description fields are used to make unique details about the ads, outstanding. If it's product sales ads, for instance; the description could include texts like “Shop now” or “Buy shoes now.” etc.
In this case of Mario's text ad, the component asking Mario to highlights the unique features of his text ad is the description component.