Northern Trail Outfitters needs to reduce the amount of work when managing messages to customers,...

The best solution to reduce manual workloads and improve customer experience for Northern Trail Outfitters, given the increase in customer purchases, is to implement D. A triggered message to send an email as soon as a customer completes a purchase. This approach automates the process of sending order confirmations and ensures that customers receive timely and relevant communications immediately after their purchase, enhancing their experience and reducing the workload on the team.