From the article "What is Digital$-$First Strategy": Mobile platforms present some challenges for content presentation, as a desktop$-$version website may not produce a satisfactory user experience on mobile devices. What is one of the differences with mobile reading?

Mobile users devote prolonged time reading on mobile devices, so headlines and contents need to be longer.

People "click" to explore interactive elements on a mobile device.

Mobile users don't devote prolonged time reading on mobile devices, so headlines and contents need to be shorter.

People use a mouse to scroll up and down on a mobile device.