An engineer sees that traffic is not flowing between two line cards on a Cisco ASR 9000 Series device. To troubleshoot this issue, what should the engineer do first? 

Answer options:

A. Verify whether there are errors on the EOBCs.
B. Verify whether there are PFM alarms on the line cards and RSPs.
C. Verify whether LPTS configuration is prohibiting traffic between the two line cards.
D. Verify whether there are alarms in the system diagnostics.

B