Answer: Average call duration

## Detailed Explanation **Correct Answer: B (Average call duration)** **Why B is the optimal choice:** 1. **Direct correlation with the stated business goal:** The company's objective is to "decrease the number of actions call center employees need to take to respond to customer questions." Average call duration serves as a strong proxy metric for this goal. When employees perform fewer actions (e.g., searching databases, navigating multiple systems, typing responses), calls naturally become shorter and more efficient. 2. **Measurable and quantifiable impact:** Average call duration is a concrete, easily tracked Key Performance Indicator (KPI) in call center operations. By comparing pre-implementation and post-implementation data, the company can directly measure whether the LLM chatbot is achieving its intended efficiency improvements. 3. **Operational efficiency indicator:** Shorter call durations typically indicate: - Faster access to information through the chatbot - Reduced manual effort by employees - Streamlined customer interactions - Improved first-call resolution rates 4. **Cost-benefit alignment:** Reduced call duration directly translates to operational cost savings, as employees can handle more calls in the same timeframe, improving overall call center productivity. **Why other options are less suitable:** - **A (Website engagement rate):** While potentially relevant for web-based chatbots, this metric doesn't directly measure the impact on call center employee actions. The question specifically focuses on call center operations, not website interactions. - **C (Corporate social responsibility):** This is a broad organizational value metric unrelated to the specific operational efficiency goal of reducing employee actions in customer service interactions. - **D (Regulatory compliance):** While important for any business system, compliance metrics don't measure the efficiency improvements or reduction in employee actions that the company is specifically targeting with this LLM implementation. **Best Practice Consideration:** When implementing AI solutions like LLM chatbots in customer service environments, it's crucial to select metrics that directly align with the specific business objectives. Average call duration is widely recognized in the industry as a primary metric for evaluating the efficiency impact of automation tools in call centers. It provides actionable insights that can guide further optimization of the chatbot and training of call center staff.

Author: LeetQuiz Editorial Team