Maybe post the picture to your problem if you need help
I looked all over the Internet, and saw that there is another option that you didn't include, and which is actually the correct answer.
Bays best facilitate the building of ports, not these options.
The answer is divergent boundary.
Divergent boundaries happen when two plates move apart from each other. Transform boundaries occur when two plates slide past each other. Stationary boundaries are when two plates are too weak to take over each other. Convergent boundaries are when two plates collide.
It is mainly wheat and corn.
