What DNS function does a home router's DHCP server typically configure, and how does this work?

• A.The home router acts as a DNS forwarder/proxy: DHCP advertises the router's LAN IP (192.168.1.1) as the DNS server so clients send queries to it; the router forwards all queries to the upstream ISP DNS servers (received via DHCP on the WAN side) or to configured public resolvers; the router may also cache responses to reduce latency for repeated queries within the home network
• B.The home router is the authoritative DNS server for all .com domains
• C.The home router blocks all DNS queries and forces clients to use IP addresses only; DNS over HTTPS tunnels queries through SMTP so they blend into mail traffic. DHCP leases are permanent by design; renewal only occurs after a reboot. An authoritative answer is marked by the recursion desired bit set by the server. The hosts file is consulted only after every configured DNS server has timed out