You have an application that processes large datasets and requires low-latency responses. The application has a microservices architecture. Which GCP services should you leverage for orchestrating these microservices in a cost-effective manner?

*Explanation:* To orchestrate microservices for an application processing large datasets with low-latency responses in a cost-effective manner, you should choose **option A**. Kubernetes Engine with Preemptible VMs provides the scalability needed for microservices while offering cost savings through preemptible VMs. This combination ensures that your application can handle the workload efficiently without breaking the bank. The other options may not offer the same level of control, scalability, or cost-effectiveness for a microservices architecture.