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A company is developing a microservices application with a search catalog. The application must use REST APIs for the frontend and access backend services hosted in private VPC subnets. What is the appropriate solution?
A
WebSocket API with Amazon API Gateway, Amazon ECS in a private subnet, and a private VPC link.
B
REST API with Amazon API Gateway, Amazon ECS in a private subnet, and a private VPC link.
C
WebSocket API with Amazon API Gateway, Amazon ECS in a private subnet, and a security group.
D
REST API with Amazon API Gateway, Amazon ECS in a private subnet, and a security group.
