一直以來，貴公司的行銷活動都著重於提高自家應用程式的曝光率。 下列哪兩項是在宣傳應用程式時，應將應用程式參與度納入考量的原因？(請選擇兩項)

The two correct options highlight common challenges in app marketing that app engagement campaigns address. Many users download an app but then forget about it, leading to low usage; engagement campaigns remind them to return. Additionally, a significant portion of app users churn within three months of download, making re-engagement crucial to retain them and maximize lifetime value. The incorrect options are less relevant to app engagement. Apps do not typically uninstall during OS updates, and while new users might need incentives, this relates more to acquisition than engagement with existing users.