How can users access Adobe Express?

Users can access Adobe Express through a web browser or by downloading the mobile app, which provides flexibility and convenience. This allows them to create and edit content on various devices, including desktops, laptops, tablets, and smartphones, without the need for extensive software installations. The web-based nature ensures accessibility from different operating systems, while the mobile app caters to users who prefer editing on the go.

The other options suggest limited or unnecessary barriers to access. For instance, requiring a desktop installation restricts use to a specific type of device, which can be inconvenient. Accessing only through third-party platforms could complicate the user experience, as it may not provide the full functionality of Adobe Express. Lastly, making access contingent on purchasing a subscription alone doesn't reflect the offering's versatility, as there are free and subscription-based tiers accessible through the app and web. Therefore, option B accurately reflects the diverse access points available for Adobe Express users.