How can you get the public certificate that is required to validate a JSON Web Token?

How can you get the public certificate that is required to validate a JSON Web Token?
A . By installing the certificate file on the server and retrieving it locally
B . By calling the endpoint accounts.getJWTPublicCertificate
C . By requesting the certificate from the provider by email
D . By calling the endpoint accounts.getJWTPublicKey

Answer: D