一位广告客户准备制作自己的移动广告系列，并且希望可以将广告投放在任何现代浏览器上。为此，他们应当选择下面哪些广告资源选项？

The client wants to run ads on any modern browser, which means targeting web-based inventory rather than in-app or video-specific formats. Smartphone and tablet inventory are the correct choices because they represent the primary categories of mobile devices that access websites through modern browsers. Mobile in-app inventory targets applications, not browsers. In-stream and out-stream video inventory are specific video ad formats, not general browser-based inventory. Desktop website inventory is for desktop computers, not mobile devices.