Which tool can be used to check the connections to all managed hosts and verify the versions of ECS and ECS-Ingress services after an upgrade?

Which tool can be used to check the connections to all managed hosts and verify the versions of ECS and ECS-Ingress services after an upgrade?
A . validate_ecs-ingress_service.sh
B . deployment_info.sh
C . collectGvStats.sh
D . validate_ecs_service.sh

Answer: D