Brighton wants to understand the time between repeat purchases of his brand's products so he can find the ideal time tore engage shoppers and drive loyalty. Which audience insight would help Brighton achieve this goal?

Purchase frequency directly measures how often customers buy a product within a given timeframe, making it ideal for determining the time between repeat purchases. This metric helps Brighton identify optimal re-engagement points to encourage loyalty. Overlap reports show shared audiences between different brands or products, which is not relevant to understanding repeat purchase timing for a single brand. "Timing" is too general; while it relates to the goal, "purchase frequency" is the specific metric that provides the actionable insight Brighton needs.