In the HQ region you run an hourly batch process reading data from every region to compute cross regional reports that are sent by email to all offices this batch process must be completed as fast as possible to quickly optimize logistics how do you build the database architecture in order to meet the requirements’?

Your company has HQ in Tokyo and branch offices all over the world and is using a logistics software with a multi-regional deployment on AWS in Japan, Europe and USA, The logistic software has a 3-tier architecture and currently uses MySQL 5.6 for data persistence. Each region has deployed its own database

In the HQ region you run an hourly batch process reading data from every region to compute cross regional reports that are sent by email to all offices this batch process must be completed as fast as possible to quickly optimize logistics how do you build the database architecture in order to meet the requirements’?
A . For each regional deployment, use RDS MySQL with a master in the region and a read replica in the HQ region
B . For each regional deployment, use MySQL on EC2 with a master in the region and send hourly EBS snapshots to the HQ region
C .  For each regional deployment, use RDS MySQL with a master in the region and send hourly RDS snapshots to the HQ region
D . For each regional deployment, use MySQL on EC2 with a master in the region and use 53 to copy data files hourly to the HQ region
E . Use Direct Connect to connect all regional MySQL deployments to the HQ region and reduce network latency for the batch process

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Answer: A