You work for a company that operates an ecommerce website. You are developing a new integration that will manage all order fulfillment steps after orders are placed. You have created multiple Cloud Functions to process each order. You need to orchestrate the execution of the functions, using the output of each function to determine the flow. You want to minimize the latency of this process. What should you do?

A. Use Workflows to call the functions, and use callbacks to handle the execution logic. B. Use Workflows to call the functions, and use conditional jumps to handle the execution logic. C. Use Cloud Composer to call the functions, and use an Apache Airflow HTTP operator to handle the execution logic. D. Use Cloud Composer to call the functions, and use an Apache Airflow operator to handle the execution logic.