Answer:
Try resetting your device.
Explanation:
In order to send and receive iMessages to your iPhone, iMessage must be enabled. By doing this, you will associate your phone number with the email address used for your Apple ID or iCloud account.
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
