Subnet and Internet gateway are the correct VPC components in this question.

A Subnet defines a CIDR range of IP addresses inside a VPC and is where you place EC2 instances and other resources. An Internet gateway attaches to the VPC and provides a route target that enables traffic to and from the internet for resources that have public routes.

AWS Storage Gateway is a hybrid storage appliance and service that connects on premises environments to AWS and it is not a VPC networking primitive.

Amazon API Gateway is a managed API hosting service and it does not live as a native VPC component unless you use specific private integrations or VPC links, so it should not be selected as a VPC primitive.

S3 bucket belongs to Amazon S3 which is global object storage and it is not a VPC component despite being accessible from VPC resources.

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