In a production environment, a company utilizes AWS CodeDeploy for blue/green deployments of their application, which involves Amazon EC2 Auto Scaling groups launching instances running Amazon Linux 2. The code repository contains a functional appspec.yml file. To ensure that a script can download and install a license file on the instances before they begin to handle traffic, a DevOps engineer modifies the appspec.yml file by adding a hooks section. Which specific hook should the DevOps engineer utilize to execute the script responsible for downloading and installing the license file?