How Did Subsidies for American Farmers Contribute to the Level

How did subsidies for American farmers contribute to the level of food security in some African countries?

A) American farmers were able to produce vast quantities of food and sell it cheaply.This outcompeted local African farms selling the same products.To compensate,the African farms switched to cash crops and ultimately made their country dependent on foreign food supplies,decreasing their food security.
B) Since American farmers were able to produce vast quantities of food and sell it cheaply,this allowed African farmers to grow cash crops and thus bring more economic stability to the community as a whole,increasing their food security.
C) American farmers were able to take advantage of the subsidies and produce more food,which made America less dependent on food supplies imported from African farmers.Since the African farmers were unable to sell their crops,the farms failed and decreased their community's level of food security.
D) Subsidies on American farms decreased the amount of crops that could economically be harvested.This decreased the overall world supply of food and resulted in African countries being unable to import enough food to feed their communities,thus decreasing their food security.
E) American farm subsidies did not have any effect,positive or negative,on food security in African countries.