Final answer:
Using an automated calendar and reminder system on a smartphone for case deadlines is how mobile technology can increase work productivity for a lawyer like Molly.
Step-by-step explanation:
The best illustration of how mobile technology increases work productivity for Molly, a lawyer, can be found in option b) Molly sets up an automated calendar and reminder system on her smartphone for case deadlines. This use of mobile technology enables efficient time management and ensures that critical deadlines are not missed, thus enhancing her professional effectiveness. Unlike the other options, which involve either distractions or non-work-related activities, setting up a calendar and reminders is a productive use of technology directly related to her work tasks.