You have developed a custom machine learning model using Vertex AI to forecast the sales of your company’s products based on historical transactional data. Given the dynamic nature of your business, you anticipate changes in the feature distributions and the correlations between the features in the near future. Additionally, you expect to receive a large volume of prediction requests. To maintain the accuracy and reliability of your model's predictions, you plan to utilize Vertex AI Model Monitoring for drift detection. Considering your objective to minimize costs, what configuration should you choose for monitoring?