Which statement best describes basic cloud networking components such as VPCs, subnets, route tables, NAT gateways, and security groups?

• A. Security groups act as the primary routing mechanism between subnets.
• B. VPC isolates virtual network; subnets segment resources; route tables govern routing; NAT gateways provide outbound Internet; security groups act as stateful firewalls.
• C. NAT gateways assign public IPs to all resources by default.
• D. Route tables automatically encrypt traffic between subnets.

Answer: (B)