How does Debezium typically implement Change Data Capture for relational databases?

A It reads the database's transaction log (e.g., MySQL binlog, PostgreSQL WAL) to capture row-level changes and publish them as events, typically to Kafka B It periodically runs SELECT * on every table and diffs the entire results C It requires modifying application code to manually emit every change event D It only works by deleting and recreating the entire database nightly