Samira has a travel app named YourAdventure. Why should she create themed ad groups for speciﬁc oﬀerings, such as culinary experiences, guided hikes, and architectural tours?

Themed ad groups are used to set budgets by traveler interest.
Themed ad groups are used to adjust bids by traveler interest.
Themed ad groups are used to create and deliver relevant ads to travelers with diﬀerent interests.
Themed ad groups are used to create and deliver ads in diﬀerent languages to diﬀerent travelers.