Which of the following activities can be shared for customized advertising?

Customized advertising relies heavily on the information that companies can gather about user interactions within applications and online platforms. When considering the activity that can be shared for this purpose, app activity is the most relevant choice.

App activity includes data about how users interact with different applications, such as which features they use, the content they engage with, and the time spent in the app. Advertisers analyze this data to understand user preferences and behaviors, allowing them to display ads that align more closely with individual user interests and needs. This targeted approach enhances the effectiveness of ads, resulting in a better experience for users as well as higher conversion rates for advertisers.

The other options, while they may involve certain settings and configurations, do not provide the same level of insight into user behavior that is essential for customized advertising. Account settings mainly relate to user privacy preferences, network settings pertain to connection specifics, and device configurations are about hardware and software setups, none of which offer direct insights into user engagement with advertising content.