Final answer:
Telemarketers can only call a consumer on the Do Not Call list if they have prior express written consent from the consumer. Without written consent, unsolicited calls to registered numbers are prohibited. The correct answer is option: a. yes, so long as the consumer consents in writing.
Step-by-step explanation:
If a consumer registers on the Do Not Call list, a licensee may not call the consumer unless certain conditions are met. The correct answer to the question is: a. yes, so long as the consumer consents in writing. The Federal Trade Commission's Telemarketing Sales Rule permits companies to call a consumer who is on the National Do Not Call Registry only if they have obtained the consumer's prior express written consent
Without such written consent, telemarketers and businesses are prohibited from making unsolicited calls to the numbers listed on the registry. Furthermore, even with consent, the communication must comply with other legal requirements that govern telemarketing practices.