You are designing an AWS Direct Connect solution into your VPC. You need to consider requirements for the customer router to terminate the Direct Connect link at the Direct Connect location. Which three factors that must be supported should you consider when choosing the customer router? (Choose three.)

A. 802.1q trunking
B. 802.1ax or 802.3ad link aggregation
C. OSPF
D. BGP
E. single-mode optical fiber connectivity
F. 1-Gbps copper connectivity