The following are the benefits of using virtual network peering, whether global or local:

Option A is correct. Virtual network peering offers a high-bandwidth, low-latency connection between the resources in various virtual networks.
Option B is incorrect. The connection provided by virtual network peering is low-latency, not high latency.
Option C is incorrect. There is no downtime to resources in either virtual network while developing the peering, or after the peering is developed.
Option D is correct. Virtual network peering offers the capability to peer virtual networks created through the Azure Resource Manager.
Option E is correct. Azure Network Peering offers the capability for resources in a virtual network to communicate with resources in another virtual network.
Reference:
https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-peering- overview?WT.mc_id=modinfra-33046-thmaure