Answer:
The correct answer is letter "C": The equilibrium quantity will rise.
Step-by-step explanation:
The equilibrium point refers to the intersection of the supply and demand curves of a good or service as a result of having a determined quantity supplied that matches with the quantity demanded at a certain price, keeping other things constant -ceteris paribus.
Thus, an increase in supply and demand for soybeans will increase the equilibrium point of the quantity supplied and demanded for soybeans.