What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Number of correct answers; 2)

What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Number of correct answers; 2)
A . Low maintenance, low costs
B . Startup in seconds without the need to reserve resources
C . Less significant visualization layer performance losses
D . Stronger isolation between instances

Answer: A,B