For This Question,refer to the Following Excerpt

For this question,refer to the following excerpt. In all social systems there must be a class to do the menial duties,to perform the drudgery of life....Such a class you must have,or you would not have that other class which leads progress,civilization,and refinement.It constitutes the very mud-sill of society and of political government....Fortunately for the South,she found a race adapted to that purpose to her hand.A race inferior to her own,but eminently qualified in temper,in vigor,in docility,in capacity to stand the climate,to answer all her purposes.We use them for our purpose,and call them slaves....
The Senator from New York [William Seward] said yesterday that the whole world had abolished slavery.Aye,the name,but not the thing;...for the man who lives by daily labor,and scarcely lives at that,and who has to put out his labor in the market,and take the best he can get for it;in short,your whole hireling class of manual laborers and "operatives," as you call them,are essentially slaves.The difference between us is,that our slaves are hired for life and well compensated;there is no starvation,no begging,no want of employment among our people,and not too much employment either.Yours are hired by the day,not cared for,and scantily compensated,which may be proved in the most painful manner,at any hour in any street in any of your large towns....
South Carolina Senator James Henry Hammond,Speech to the Senate,March 4,1858
The excerpt above was most likely written as a result of

A) poor whites living on the frontier tending to champion expansion efforts.
B) regional identity asserted through southern pride in the institution of slavery.
C) the acceleration of a national and market economy.
D) overcultivation of lands in the Southeast,leading slaveholders to relocate to the new Southwest.