Based on demand, an IaaS provider wants to deploy a security application for its customers. Which of the following is the BEST technique for the IaaS provider to apply this to target systems?

A vendor application provides pre-built software functionality but does not address the deployment methodology challenge of distributing that application across many customer systems.

Scripting can automate individual tasks but lacks the built-in coordination, state tracking, dependency management, and scalability required to reliably deploy applications across an IaaS customer base.

Orchestration platforms coordinate the automated provisioning, configuration, and deployment of applications across multiple systems simultaneously, ensuring consistency and eliminating the need for manual per-system intervention. For an IaaS provider serving many customers, orchestration is the only option in the list that scales efficiently and maintains deployment state across heterogeneous target environments.

Custom programming requires significant development effort and time investment and solves application logic problems rather than the infrastructure-wide deployment challenge described.