Geoff strolled into his local big box retailer in search of sunflower seeds for the flock of cardinals that graced his property during the cold winter

Much to his (and the cardinals') dismay, the shelf where the 50 pound bags of sunflower seeds were kept was bare. He pirouetted and left the store in disgust, empty-handed and fearing the wrath of an angry flock of cardinals when he returned home. This sad scenario illustrates
A) safety inventory.
B) cycle inventory.
C) a markdown.
D) a lost sale.

Answer: D