The correct answer is option 'D', organic solidarity. Organic solidarity is a form of social cohesion that is based on the division of labor and interdependence among individuals in society. It is a concept introduced by French sociologist Émile Durkheim.

Here is a detailed explanation of the answer:

1. Social Cohesion:
- Social cohesion refers to the bonds and connections that hold individuals together in a society.
- It is the degree of unity, solidarity, and integration among individuals and social groups within a society.
- Social cohesion is essential for the smooth functioning and stability of a society.

2. Division of Labor:
- The division of labor is the specialization and allocation of different tasks and roles to individuals in society.
- It allows people to focus on specific tasks based on their skills and abilities.
- The division of labor leads to increased productivity and efficiency in society.

3. Mechanical Solidarity:
- Mechanical solidarity is a form of social cohesion that is based on shared beliefs, values, and norms.
- It is characteristic of traditional, small-scale societies where individuals have similar ways of life and a collective conscience.
- In mechanical solidarity, social bonds are strong and individuals have a high degree of similarity and homogeneity.

4. Organic Solidarity:
- Organic solidarity is a form of social cohesion that is based on the interdependence of individuals in a complex, modern society.
- It is characterized by the division of labor and the interconnections between different occupations and social roles.
- In organic solidarity, individuals are interdependent on each other for their economic, social, and cultural needs.

5. Explanation of the Answer:
- The form of social cohesion that is based on the division of labor is known as organic solidarity.
- Organic solidarity is the correct answer because it emphasizes the interdependence and cooperation among individuals in a complex society.
- In a society characterized by organic solidarity, individuals rely on each other's specialized skills and contributions for the functioning of society as a whole.

In conclusion, the form of social cohesion that is based on the division of labor is known as organic solidarity. It highlights the interdependence and cooperation among individuals in a complex society where people have specialized roles and tasks.