Final answer:
If a BRC is returned without a valid phone number, agents have several options for contacting the consumer.
Step-by-step explanation:
In this scenario, if a Business Reply Card (BRC) is returned by the consumer without a valid phone number, agents have several options.
They can try to contact the consumer using other available contact information, such as their email address.
Alternatively, they can reach out to the consumer indirectly through the retailer or dealer that distributed the BRC. Another option would be to follow up with the consumer through traditional mail.