In Transaction Monitoring what are some reasons below that shows that over time the number of True Alerts will improve for a Transaction Monitoring system? (SELECT 2)

In Transaction Monitoring what are some reasons below that shows that over time the number of True Alerts will improve for a Transaction Monitoring system? (SELECT 2)
A . Transaction Monitoring software companies update their software
B. Revising Rules
C. Evaluating Alert Productivity
D. Improved training for AML Analysts

Answer: B,C