Http://www.encyclopedia.com/law/legal-and-political-magazines/mail-federal-mail-fraud-act
Answer:
Looking at the options I think that it would be bad weather.
A.Bad weather
Explanation:
B.Bandits are a hazard and can steal whatever goods a trader has.
C.Damaged roads could be repaired or replaced.
D.Losing animals and livestock would be a big blow to the economy because they provide the food we need.
Herbert Hoover was nicknamed the Food Czar because he provided food to Europe. He was appointed head of the Food Administration by President Wilson.
