A company has applications running in a single AWS Region and its on-premises data center in a hybrid mode. The company has a 1 Gbps AWS Direct Connect connection from the data center to AWS that is 65% utilized. The company has an AWS Enterprise Support plan.
The company is planning to deploy a new critical application on AWS that will connect with existing applications running in the data center. The application SLA requires a minimum of 99.9% network uptime between the data center and AWS.
What is the MOST cost-effective way to meet this SLA requirement?

A. Create a second virtual interface (VIF) on the existing Direct Connect connection, and terminate this VIF in the existing VPC. Use BGP for load balancing between the VIFs in active/active mode.
B. Purchase an additional 1 Gbps Direct Connect connection from AWS in a different cross-connect location terminated in the associated Region. Provision a new virtual interface (VIF) to the existing VPC, and use BGP for load balancing.
C. Set up two new hosted Direct Connect connections of 500 Mbps each through an AWS Direct Connect partner. Provision two virtual interfaces (VIFs) to the existing VPC on both Direct Connect connections, and use BGP for load balancing. Terminate the existing 1 Gbps Direct Connect connection.
D. Purchase an additional 1 Gbps Direct Connect connection from AWS in the existing cross-connect location. Ask AWS to terminate this new connection in a different router. Provision two virtual interfaces (VIFs) to the same VPC on both Direct Connect connections, and use BGP for load balancing.