Which action would you perform to determine the problem?
Exhibit. Referring to the exhibit, you have configured an aggregate route that represents the 172.21.0.0/24, 172.21.1.0/24, and 172.21.2.0/24 networks. However, when you view the routing table, your new route hidden. Which action would you perform to determine the problem?A . Verify that you have active contributing routes on the device.B...