The route is ACF.
Direction route
A path on which a person is moving.
How to get the shortest distance?
From the figure, we can clearly see that the AC path is the shortest one which is 1 unit.
From the figure, we can clearly see that the ACF path is the second shortest one which is 3 units.
From the figure, we can clearly see that the AD path which is 8 units.
From the figure, we can clearly see that the AB path which is 4 units.
Thus, the route is ACF.
More about the direction route link is given below.
https://brainly.com/question/17238121