Which of the following are characteristics of a reserved instance? Choose 3 answers

Which of the following are characteristics of a reserved instance? Choose 3 answers
A . It can be migrated across Availability Zones
B . It is specific to an Amazon Machine Image (AMI)
C . It can be applied to instances launched by Auto Scaling
D . It is specific to an instance Type
E . It can be used to lower Total Cost of Ownership (TCO) of a system

Answer: C, D, E