Your data science team has requested a system that supports scheduled model retraining, Docker containers,...

Option A is incorrect because Vertex AI Pipelines and App Engine do not meet all the requirements of the system.  Vertex AI Pipelines is a service that allows you to create, run, and manage ML wor kflows using TensorFlow Extended (TFX) components or custom components 1 .  App Engine is a service that allows you to build and deploy scalable web applications using standard or flexible environments 2 .  However, App Engine does not support Docker containers in the standard environment, and does not provide a de dicated service for online prediction and monitoring of ML models 3 .

Option B is correct because Vertex AI Pipelines, Vertex AI Prediction, and Vertex AI Model Monitoring meet all the requirements of the system.  Vertex AI Prediction is a service that allows you to deploy and serve ML models for online or batch prediction, with supp ort for autoscaling and custom containers 4 .  Vertex AI Model Monitoring is a service that allows you to monitor the performance and fairness of your deployed models, and get alerts for any issues or anomalies 5 .

Option C is incorrect because Cloud Composer, BigQuery ML, and Vertex AI Prediction do not meet all the requirements of the system. Cloud Composer is a service that allows you to create, schedule, and manage workflows using Apache Airflow. BigQuery ML is a service that allows you to create and use ML models within BigQuery using SQL queries. However, BigQuery ML does not support custom containers, and Vertex AI Prediction does not support scheduled model retraining or model monitoring.

Option D is incorrect because Cloud Composer, Vertex AI Training with custom containers, and App Engine do not meet all the requirements of the system. Vertex AI Training is a service that allows you to train ML models using built-in algorithms or custom containers.  However, Vertex AI Training does not support online prediction or model monitoring, and App Engine does not support Docker containers in the stand ard environment or online prediction and monitoring of ML models 3 .