Identify the sociologists who have extensively worked on the concept of 'social stratification':
A. Kingsley Davis
B. Wilbert Moore
C. Karl Marx
D. Émile Durkheim
E. Max Weber
Choose the correct answer from the options given below:
1
A, B, C, D only
2
A, C, D, E only
3
B, C, D, E only
4
A, B, C, E only