What should NTO do to automate the process of finding its affected customers?

Northern Trail Outfitters (NTO) was unable to process coupon codes for several days, when caused customers to complain about their experience. NTO would like to apologies by offering an upgraded coupon to help improve customer satisfaction

What should NTO do to automate the process of finding its affected customers?
A . Filter the data based on a specific date range.
B . Use Einstein engagement scores to identify affected users.
C . Query the data using a specific date range parameter

Answer: A