Your ad can show to a potential customers when your targeted language matches:
A) the customer’s browser setting
B) the customer’s Google interface language setting
C) the language of websites a user visits most often
D) the customer’s operating system language
Explanation:
Language is targeted on the basis of potential customer’s Google interface language setting.
Example:
Let’s say you sell coffee beans online, and you want to target Spanish-speaking customers. You set up an AdWords campaign targeted to the Spanish language, with Spanish ads and keywords. As long as your customers’ Google interface language settings are set to Spanish, your coffee ads can show when your Spanish language customers search for your keywords. Keep in mind that if your customers searched in Spanish but their Google interface language settings were set to English, your ads wouldn’t show. That’s why targeting all languages might be helpful.