C. Replace the specific feature with a goal.

To improve the user story, the business analyst should replace the specific feature with a broader goal that focuses on the outcome or benefit rather than the solution. This allows for more flexibility and encourages creative solutions. Here's an improved version of the user story:

"As a service agent, I want to complete repetitive tasks more efficiently to improve productivity."

This revised user story keeps the focus on the goal (improving efficiency) without specifying a particular solution (Salesforce Macros). It allows for various solutions to achieve the desired outcome and provides more room for innovation and exploration during the development process.