You have a Dataproc cluster that performs batch processing on data stored in Cloud Storage. You need to schedule a daily Spark job to generate a report that will be emailed to stakeholders. You need a fully-managed solution that is easy to implement and minimizes complexity. What should you do?

A. Use Cloud Composer to orchestrate the Spark job and email the report. B. Use Dataproc workflow templates to define and schedule the Spark job, and to email the report. C. Use Cloud Run functions to trigger the Spark job and email the report. D. Use Cloud Scheduler to trigger the Spark job, and use Cloud Run functions to email the report.