Hello, there is a question with a difficult answer.
Elastic IPs are paid for 1 year now. So it is difficult to chose the correct answer for the question above.
You are correct that Elastic IP is now a chargeable service. It was not at the time this question was written, so the given answer is correct. I will point it out to the lab team.
Elastic Ip is free in till the ec2 instance is running state , If you stop the instance ,elastic ip is charge
But from the above question answer # 3
data transfer charges will accapable on aws infra to our data center.
The correct option has been updated in the quiz.