A User Is Trying to Save Some Cost on the AWS

Multiple Choice

A user is trying to save some cost on the AWS services. Which of the below mentioned options will not help him save cost?

A) Delete the unutilized EBS volumes once the instance is terminated
B) Delete the AutoScaling launch configuration after the instances are terminated
C) Release the elastic IP if not required once the instance is terminated
D) Delete the AWS ELB after the instances are terminated