Final answer:
A waiver under the DTPA is not enforceable if the customer's residence is not included, the waiver is not conspicuous, or the customer has legal counsel.
Step-by-step explanation:
A waiver under the DTPA (Deceptive Trade Practices Act) is not enforceable if any of the following conditions are met:
- The customer's residence is not included on the waiver.
- The waiver is not conspicuous, meaning it is not prominently displayed and easily noticeable.
- The customer has legal counsel, meaning they have a lawyer representing their interests.
Therefore, the correct answer is D. All of the above, as all of these conditions must be met for a waiver under the DTPA to be unenforceable.