A cloud administrator checked out the deployment scripts used to deploy the sandbox environment to a public cloud provider. The administrator modified the script to add an application load balancer in front of the web- based front-end application. The administrator next used the script to recreate a new sandbox environment successfully, and the application was then using the new load balancer.
The following week, a new update was required to add more front-end servers to the sandbox environment. A second administrator made the necessary changes and checked out the deployment scripts. The second administrator then ran the script, but the application load balancer was missing from the new deployment.
Which of the following is the MOST likely reason for this issue?

A. The license limit on the number of server deployments allowed per month was exceeded.
B. The deployment script changes made by the first administrator were not checked in and committed.
C. The new server images were incompatible with the application load-balancer configuration.
D. The application load balancer exceeded the maximum number of servers it could use.