Which of the following features negates the need for you to manually enter VPN routes in your route table

Answer options:

A.Peer Routing
B.Route Propogation
C.Route Navigation
D.Route Prepending

Answer - B
The AWS Documentation mentions the following on Route tables
Route propagation allows a virtual private gateway to automatically propagate routes to the route tables so that you don`t need to manually enter VPN routes to your route tables. You can enable or disable route propagation.
For more information on Route Propogation, please visit the below URL:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Route_Tables.html#EnableDisableRouteProp