For Which of the Two Situations Below Is It Desirable

Multiple Choice

For which of the two situations below is it desirable to find an Euler circuit or an efficient eulerization of a graph? I. After a storm, a health department worker inspects all the houses of a small village to check for damage.
II) A veteran planning a visit to all the war memorials in Washington, D.C., plots a route to follow.

A) I only
B) II only
C) Both I and II
D) Neither I nor II