Final answer:
The characteristic that aligns best with Aislinn's performance goal of successfully assisting three customers per hour is a) efficiency.
Step-by-step explanation:
The characteristic that aligns best with Aislinn's performance goal of successfully assisting three customers per hour is efficiency.
Efficiency is the ability to accomplish a task or goal using the least amount of resources, such as time and effort. In this case, Aislinn aims to assist three customers per hour, indicating that she wants to efficiently use her time to attend to as many customers as possible within a given timeframe.
Aislinn's goal of assisting three customers per hour can be further illustrated using the provided information. On average, one customer arrives every two minutes, which means it will take six minutes on average for three customers to arrive. Aislinn's goal aligns with efficiency as she aims to manage her time effectively to attend to those three customers within that six-minute timeframe.