Why were slaves not asked to render military services?

From Slavery to the Military. At the outbreak of the Civil War, Black men, both free and escaped slaves, immediately offered their services to the nation to participate as fighting men for a cause they understood would bring the evil institution of chattel slavery to an end in the United States.

Explanation:

the influence of daoism, buddhism, and legalism on chinese culture. unlike confucianism, daoism looked to nature rather than human beings as the source of morality. according to laozi, human society has to conform to the dao (the way), or the essential unifying element of all that is. some interpret dao as nature.

d is the right answer