Herbert spencer used the concept of social darwinism to defend

the rise of poverty and the mortality rates of less fortunate people.

Explanation:

Being an English philosopher on social theory, he embraces the view "only the strongest will survive" , since he applies the concepts Charles Darwin studied on the emergence and adapting of natural species.

For Spencer chaos is necessary, and will occur as society is a living organism that adapts and evolves , just like a single cell organism tu multicellular organisms.  Spencer will not argue against the disparities of capitalism , neither the rise of poverty levels or the mortality rates for the people that is in the lowest social classes.

The view that economic disparities in society are part of the process of evolving from a simple to complex division of labor is seen as natural.

Thus Marx, Durkheim and other sociologists would fiercly criticize this view.

B.) the rise of poverty and the mortality rates of less fortunate people.

Explanation: