What Does This Sentence Mean? "Their Fungible Goods Became Confused

What does this sentence mean? "Their fungible goods became confused."​

A) Identical property of two or more persons was mixed together in way that they became indistinguishable.
B) The trained dog became puzzled.
C) A merchant seller breached a specified duty to a non-merchant buyer.
D) Several warranties that are usually provided in the sale of goods by a merchant are not available in a specific transaction because the time involved was insufficient to allow for any recovery of injury proximately caused by a breach of duty.