A Database Is on an Amazon RDS MySQL 5

A database is on an Amazon RDS MySQL 5.6 Multi-AZ DB instance that experiences highly dynamic reads. Application developers notice a significant slowdown when testing read performance from a secondary AWS Region. The developers want a solution that provides less than 1 second of read replication latency. What should the solutions architect recommend?

A) Install MySQL on Amazon EC2 in the secondary Region.
B) Migrate the database to Amazon Aurora with cross-Region replicas.
C) Create another RDS for MySQL read replica in the secondary Region.
D) Implement Amazon ElastiCache to improve database query performance.