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

Answer: B