You need to reduce the number of unplanned rollbacks of erroneous production deployments in your company`s web hosting platform. Improvement to the QA/ Test processes accomplished an 80% reduction. Which additional two approaches can you take to further reduce the rollbacks? (Choose two.) 

Answer options:

A. Introduce a green-blue deployment model
B. Replace the QA environment with canary releases
C. Fragment the monolithic platform into microservices
D. Reduce the platform`s dependency on relational database systems
E. Replace the platform`s relational database systems with a NoSQL database

AC