Answer:
- A. When transportation costs rise, markets tend to substitute goods that are from closer locations.
- B. Transportation costs have declined due to technological improvements for transporting goods.
- E. The decline in the U.S. relative cost of international transportation has contributed to a higher volume of trade.
Step-by-step explanation:
When transportation costs increase, people will try to save on these costs by buying goods from nearby locations instead as these would require less transport.
In general, transportation costs have declined as technological improvements in transport have improved with better rail lines and air shipping routes. In the U.S. this has led to an increase in trade volume because people are able to buy from markets far away from them knowing that they will not have to pay exorbitant prices.