Which type of warranty arises automatically due to a sale?

An implied warranty is a type of warranty that arises automatically through the sale of goods and does not require any specific statement or written documentation. This warranty ensures that the product sold meets certain standards of quality and is fit for its intended purpose. For example, when a consumer purchases a car, there is an implied warranty that the vehicle is safe to drive and will function as expected for the relevant use.

In contrast, an expressed warranty is explicitly stated by the seller, often in writing, and includes specific promises about the product's quality or performance. Written and verbal warranties are both forms of expressed warranties since they involve clear communication about the seller's obligations.

Therefore, the nature of an implied warranty—being automatic and based solely on the transaction itself—distinguishes it as the correct answer in this context.