Which below statement correctly represents the use of AWS Edge locations?

Answer options:

A.Eases (reduces) load on origin server by caching the responses.
B.Eases (reduces) the latency and network traffic by hosting applications at locations closer to the end-users.
C.Eases (reduces) the latency and network traffic by hosting databases at locations closer to the end-users.
D.Eases (reduces) the latency and network traffic by hosting EC2 servers at locations closer to the end-users.

Answer: A
Option A is CORRECT. Responses cached at the CloudFront edge locations reduce the load on origin servers as responses are served from the CloudFront edge location.
Option B is INCORRECT. Applications cannot be hosted on edge locations.
Option C is INCORRECT. Databases cannot be hosted on edge locations.
Option D is INCORRECT. EC2 servers cannot be hosted on edge locations.
Reference:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cache-hit-ratio-explained.html
https://wa.aws.amazon.com/wat.concept.edge-location.en.html