The correct options are
A It provides food for people and raw materials for the industries.
B It is a backbone of the state's economy.
C It provides employment to the people.
Agriculture is the primary occupation and is the main source of livelihood for many people. It is the backbone of the state's economy and provides employment to people. It provides food for us and the necessary raw materials for industries. It helps in development of tertiary occupations like transport, banking, insurance and so on. It is also a source of revenue and foreign exchange for the state and plays a major role in political and social systems of the state.