An IT consultant is helping a small business revamp their technology infrastructure on the AWS Cloud. The business has two AWS accounts and all resources are provisioned in the us-west-2 region. The IT consultant is trying to launch an Amazon EC2 instance in each of the two AWS accounts such that the instances are in the same Availability Zone (AZ) of the us-west-2 region. Even after selecting the same default subnet (us-west-2a) while launching the instances in each of the AWS accounts, the IT consultant notices that the Availability Zones (AZs) are still different. As a solutions architect, which of the following would you suggest resolving this issue?