This quiz asks you to explain the results from the previous exercise
When the evaporation rate was zero, too low
we saw that the pheromones paths grew very wide attracting too many ants
to one particular food source keeping the ants from exploring other food sources
so the answer was b.
and when the evaporation rate was 20, too high
the paths evaporates too quickly
and thus nearby ants were not attracted to the path leaving to a food sources
this kind of trade-off between being too ready to exploit the best seeming possibility
or being too willing to explore many other possibilities
is a classic trade-off for adaptive systems called the exploitation vs. exploration trade-off
which we'll talk about in depth later on