Answer:
Trading is easier along the coastline.
Step-by-step explanation:
Because of the economic benefits of seawater access, coastal fishing, tourism and recreation, human settlements tend to focus more on coastal areas than elsewhere. Currently about 40 percent of the world's population lives within 100 miles of the coast.
Let's apply :-
- Areas along the coast are the most suitable for farming - That's not true, mostly farming areas are in plains or fertile land and near coastal regions you'll mainly see big urban cities.
- The area is the center of the oil industry - Yes, there are some regions near coastal areas where we can find oil underneath but those are very few in numbers.
- Trading is easier along the coastline - This is the most appropriate one because every coastal city or region can trade via ocean and all the big cities who are superior in trade markets are also lies under coastal areas.
Hope this helps!