Which of the following commands manipulates the TTL (Time to Live) field in the IP protocol in order to get ICMP responses from gateways along the path to a host?

`dig` is a network administration command-line tool for querying DNS name servers.

`host` is a simple utility for performing DNS lookups.

`ping` sends ICMP Echo Request packets to a host to test reachability and measure round-trip time, but it does not systematically manipulate TTL to discover intermediate hops.

`tcpdump` is a command-line packet analyzer that captures and displays TCP/IP and other packets, but it does not send packets or manipulate TTL to map a route.

Traceroute works by sending packets (typically UDP or ICMP) with an incrementally increasing Time to Live (TTL) value, starting from 1. Each router along the path decrements the TTL; when TTL reaches 0, the router discards the packet and sends an ICMP Time Exceeded message back to the source, allowing traceroute to identify the hops.