Final answer:
In the "show ip route" command's output, the indication of a host route is given by the entry 'S* [1/0] via F0/0', where 'S' stands for static route and the asterisk (*) implies a candidate default route.
Step-by-step explanation:
The entry from the "show ip route" command that indicates a host route is d) S* [1/0] via F0/0. A host route is a route to a single host, and in Cisco router notation, it is indicated by a prefix length of /32 or by a specific flag like 'host'. Host routes are important in a network for directing traffic to a specific endpoint and for overriding more general entries in the routing table. In the provided options, 'S' stands for a static route, and the asterisk (*) indicates that this route is a candidate default route, which are typically more granular and can be used to represent a host route.