What is the URL used for with REST API?

Refer to the exhibit:

What is the URL used for with REST API?
A . It is used to contact a URL filter to determine the efficacy of a web address
B . It is used to send a TACACS+ authentication request to a server
C . It is used to send a message to the APIC to perform an operation on a managed object or class operator
D . It is used to initiate an FTP session to save a running configuration of a device.

Answer: C