Answer – C
As per the AWS documentation , the Link Aggregation Group has the following rules , hence only option C can be used in this instance
You can create a LAG from existing connections or provide new connections. After creating the LAG, you can assign existing connections (independent as well as connections that are part of another LAG).
The following rules apply:
· All connections in the LAG must have the same bandwidth. The following bandwidths are supported: 1 Gbit / s and 10 Gbit / s.
· A LAG can contain a maximum of 4 connections. Each link in the LAG must be considered individually for the overall connection limit for the region.
· All connections in the LAG must run at the same AWS DirectConnect endpoint.
For more information on Link Aggregation Group, please refer to below URL:
http://docs.aws.amazon.com/directconnect/latest/UserGuide/lags.html