In which way could the developer create the CTA link?

A developer is building a landing page in Marketing Cloud and an email with a Call-To page will display personal information about the subscriber.

In which way could the developer create the CTA link?
A . Use the AMPscript CloudPagesURL function.
B. Append EmailAddress to the URL as an encoded parameter.
C. Append SubscnberKey to the URL as an encoded parameter.

Answer: A