Many people use relative location on a daily basis by using
a.
coordinates on a gps-enabled device
b.
their mental maps of an area
c.
a location's exact address
d.
the internet

B. their mental maps of an area

Explanation:

  One of the possible ways to read space is through maps, which are the cartographic representation of a given space. Scholars of cartography teaching / learning consider that, for the subject to be able to read space critically, it is necessary both to know how to read the real / concrete space and to be able to read its representation of space in a mind map of routes.