Depends on what you are registering for but you will most likely need your First and last Name, Email, and a secure password... that's for most signups.
Answer:
a. HIPAA
Explanation:
HIPPA represents the Health Insurance Portability and Accountability Act that of the United States which becomes mandatory for protecting the medical data in any form.
Also in the case of data protection that represent the general regulations, PCI DSS, GDPR etc would be used
So the option a is correct
hence, all the other options are wrong