The majority of farmers in Andhra Pradesh are:

Large landholders
Small and marginal farmers
Tenant farmers
Landless laborers

The correct answer is: b) Small and marginal farmers.

Small and marginal farmers are the majority of farmers in Andhra Pradesh. They account for about 80% of the total number of farmers in the state. Small and marginal farmers are those who own less than 2 hectares of land. They are mostly dependent on rain-fed agriculture and face a number of challenges, such as low productivity, lack of access to credit and markets, and vulnerability to climate change.

Large landholders are a small minority of farmers in Andhra Pradesh. They own more than 10 hectares of land. Large landholders are generally better off than small and marginal farmers. They have access to better resources, such as irrigation, credit, and markets. They are also more likely to be involved in commercial agriculture.

Tenant farmers are farmers who do not own the land they cultivate. They lease land from landowners and pay a share of the produce as rent. Tenant farmers are a significant proportion of farmers in Andhra Pradesh. They face a number of challenges, such as insecurity of tenure, exploitation by landowners, and low productivity.

Landless laborers are people who do not own any land and work as agricultural laborers. They are the poorest of the poor in rural areas. Landless laborers face a number of challenges, such as low wages, lack of social security, and vulnerability to exploitation.