Which of the following is a solution to providing Internet access to a private network using only a single public IPv4 address?

A routing gateway primarily forwards traffic between different networks based on IP addresses, but doesn't inherently solve the problem of sharing a single public IP for many private IPs for internet access.

A NAT (Network Address Translation) gateway is specifically designed to allow multiple devices on a private network, each with a private IP address, to share a single public IPv4 address for outbound Internet connectivity by performing IP address translation.

A local area network (LAN) is a network infrastructure type, not a solution for providing internet access with a single public IP.

A virtual private network (VPN) typically provides secure, encrypted tunnels over a public network, but it doesn't directly address the problem of translating multiple private IPs to a single public IP for internet access for an entire network.