Answer:
B.) Fishing
The answer is b, or fishing.
The canal was built in order to easily ship grain from the rich farmland in southern China to the capital city in Beijing
It is an act or agency by which an effect is produced.
I believe it is A They did not want Texas to be admitted to the union as a slave state.
A. Leaders believed the monarchs could help prevent any one ruler from taking too much power.
hope this helps