When investigating a suspicious fire at an apartment complex, what factor would most strongly indicate arson as the cause?

a) finding a corpse in one unit
b) fire originating at two or more distinct locations
c) determining that the fire started in a first floor apartment
d) determining that grease contributed to the spread of the fire

answer: the answer is b

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.