The key word in this question is 'communicate.' This question is less about what you'd answer with, but rather how you would communicate your answer. Your ability to distill complicated information intuitively to your clients speaks to your expertise. Stand out by demonstrating your ability to communicate complex subjects to your clients while speaking to the merits of your products and services, specifically the insights generated from them. Communicate as if you're presenting insights to a team of executives. Think about what they care about - impact on the bottom line and specific needs/actions to be taken to improve the bottom line.