Explanation:

- Option 1: Class differentiation

- Work can influence class standing. Different jobs come with different levels of prestige, access to resources, and lifestyle, contributing to class stratification.

- Option 2: Social status differentiation

- Occupations often have varied levels of societal respect and prestige. For example, doctors and lawyers typically enjoy higher social status compared to some other professions.

- Option 3: Economic differentiation

- Income from work largely determines economic status. Higher-paying jobs often lead to better living conditions and economic power.

- Option 4: All of the above

- Work affects class, social status, and economic differences collectively. It is a primary factor in shaping these societal structures.