Which of the following is NOT a type of warranty?

The correct choice identifies "Conditional warranty" as not being a recognized type of warranty. Warranties are typically classified into established categories that include implied warranties, express warranties, and limited warranties.

Implied warranties arise automatically by law and pertain to the basic level of quality that products must meet. Express warranties are specifically stated promises made by the seller regarding the quality or functionality of a product, which may be communicated verbally or in writing. Limited warranties define the scope and limitations of the guarantee, clarifying what is covered.

On the other hand, a "conditional warranty" does not have the same legal standing or recognition within warranty classifications. This term may sometimes be used in a marketing context but isn't formally recognized in the framework of warranties. Thus, the identification of this option as not a type of warranty is consistent with established legal categories regarding warranties in sales and product law.