What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?

Refer to the exhibit.

What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?
A . The Serial0/0 interface is passing traffic.
B . The DLCI 100 was dynamically allocated by the router
C . The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server
D . The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud
E . The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP

Answer: E

Explanation:

The term dynamic indicates that the DLCI number and the remote router IP address 172.16.3.1 are learned via the Inverse ARP process.

Inverse ARP is a technique by which dynamic mappings are constructed in a network, allowing a device such as a router to locate the logical network address and associate it with a permanent virtual circuit (PVC).