Which of the following is a consequence of GDPR implementation?

a$.$

GDPR only applies to the European Union, but a far more stringent set of data protection regulations is expected to be implemented in the U$.$S$.$ very soon.

b$.$

Many people believe that GDPR applies across the member countries of the European Union, but only $11$ of the EU nations will actually implement GDPR$.$

c$.$

Firms subject to GDPR may only use data about a customer for the purpose for which it was collected.

d$.$

With GDPR in place, companies that collect data about consumers in the U$.$S$.$ will not be able to operate in the European Union.