You are an external auditor performing revenue testing on Lounging Luxurys sales data. Lounging Luxury is a provider of cabana rentals to tourists at premier beaches throughout the Caribbean. Sales peak in the summer months from May through August, then experience a drastic decrease through the fall and winter months.

You have received the visualization shown above from your teams audit data analyst. It shows the sales of products over time for fiscal year 202X in a stacked area chart. Each area of color shows the total for a particular product, and the top line indicates the total of all products. To help you use the stacked area chart, the audit data analyst included totals for each product on a quarterly basis. For example, in April 202X, Product As sales were $85,000, Product Bs sales were $290,000, and Product Cs sales were $345,000.

Based on a careful review of this visualization, which product do you think should be investigated for revenue fraud risk and at what point in time? Explain your answer including what type of risk should be investigated.