Which of the following indicates there is a shortage of walnuts?

A shortage occurs when the quantity demanded of a good exceeds the quantity supplied at a given price. In the context of walnuts, if the quantity demanded surpasses the quantity supplied, it indicates that consumers are willing to purchase more walnuts than what is available in the market. This discrepancy between demand and supply prompts consumers to compete for the limited quantity available, often leading to upward pressure on prices.

When there is a shortage, firms may react by increasing prices, which aligns with market behavior aiming to reduce the quantity demanded and increase the quantity supplied until equilibrium is restored. However, the specific condition that highlights a shortage is unequivocally when the quantity demanded is greater than the quantity supplied. This directly signifies that not all consumer wants are being satisfied, leading to the recognized phenomenon of a shortage.