This contributes to reconciling the discrepancy because Foamy Soda’s low sales may be a result of an industry-wide decrease in demand. It could be that consumers just did not want as much soda this summer, regardless of the brand.

This contributes to reconciling the discrepancy. If Foamy Soda’s competitors lowered their prices more than Foamy Soda did, consumers may have decided to go with the more heavily discounted options.

This does not contribute to reconciling the discrepancy. An increase in production costs does not explain why sales decreased, especially since Foamy Soda lowered its prices.

The stores not receiving their normal shipments, and thus not being able to sell Foamy Soda as they usually do, could explain why sales of the product decreased during the summer months.

A decrease in demand for soft drinks could explain why Foamy Soda experienced a decrease in sales, even with lower prices.