You have two AWS Organizations. All the AWS accounts in Organization A need to be moved to Organization
B. You have already moved all the member accounts, and now you need to migrate the master account. Which of the following options should you choose?

Answer options:

A.Delete Organization A and invite the master account to join Organization
B.B.Remove the master account from Organization A and send an invitation to the account to join Organization
B.C.Send an invitation to the master account. Accept the invitation to move the account from Organization A to Organization
B.D.The master account in one Organization cannot join another one.

Correct Answer – A
The reference can be found in this link-https://aws.amazon.com/premiumsupport/knowledge-center/organizations-move-accounts/.
Option A is CORRECT: For the master account, the Organization needs to be deleted before the account accepts an invitation to join another one.
Option B is incorrect: Because the master account cannot be removed from an AWS Organization.
Option C is incorrect: Because the master account in one AWS Organization cannot accept an invitation to join another Organization.
Option D is incorrect: Check the above explanations in option A.