The correct options are
A Differences in society arise due to different regional and religious backgrounds.
C Inequality arises due to unequal access to resources and opportunities.
D Inequality arises due to denial of education and health care.
Differences in society and inequality are two varied aspects. This is primarily because differences in society arise due to different cultural, linguistic, regional and religious backgrounds. On the other hand, inequality arises due to denial education and adequate health care. It is a result of unequal access to resources and opportunities.