The answer is A. Sociology is the study of human
communal relationships and organizations. Sociology's topic
matter is varied, extending from crime to religion, from the family to the national,
from the separations of race and communal class to the communal opinions of a
common culture, and from social constancy to fundamental change in whole civilizations.
-22 = -40 + r
-22 (+40) = -40 (+40) + r
r = -22 + 40
r = 18
hope this helps
Chhetri
Brahman
Magar
Tharu
Tamang
Newar