An organization recently expanded its AWS infrastructure for its public website into two regions, US East (Ohio) to Asia Pacific (Mumbai), to better serve growing demand in Asia.
What should the SysOps Administrator implement to ensure that users are consistently directed to the best performing region?

Answer options:

A.Configure AWS WAF to redirect users from Asia to the website using a third-party geolocation service.
B.Use Amazon Route 53 weighted routing to direct users in Asia to the website.
C.Configure the existing webserver’s Application Load Balancer to redirect distant users to the closer website.
D.Migrate to a Route 53 latency record for the website.

Correct Answer: D
The AWS Documentation mentions the following.
If your application is hosted in multiple AWS Regions, you can improve your users` performance by serving their requests from the AWS Region that provides the lowest latency.
To use latency-based routing, you create latency records for your resources in multiple AWS Regions. When Route 53 receives a DNS query for your domain or subdomain (example.com or apex.example.com), it determines which AWS Regions you`ve created latency records for, determines which region gives the user the lowest latency, and then selects a latency record for that region. Route 53 responds with the value from the selected record, such as the IP address for a web server.
Because this is mentioned in the documentation, all other options are invalid.
For more information on the routing policies, please visit the below URL-
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html