Which of the below mentioned options does the user need…

A user is launching an instance with EC2. Which of the below mentioned options does the user need to consider before
launching an instance?

A.
Select the region where the instance is being launched.

B.
Select the instance type.

C.
All the options listed should be considered.

D.
Select the OS of the AMI.

Explanation:
Regarding Amazon EC2, when launching an instance, the user needs to select the region the instance would be launched
from. While launching, the user needs to plan for the instance type and the OS of the instance.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-launch-instance_linux.html