In a mixed economy, there is a co-existence of both the public sector and the private sector. This means that the government plays a role in the economy by owning and operating certain industries and services, while also allowing private individuals and companies to own and operate their own businesses.

Option 1: This option suggests that both agriculture and industry are equally promoted by the state. While it is true that the state may provide support and incentives for both agriculture and industry in a mixed economy, it does not necessarily mean that they are promoted equally. The government may prioritize certain sectors based on economic or social objectives.

Option 3: This option states that there is importance given to small-scale industries along with heavy industries in a mixed economy. While a mixed economy may indeed support and encourage the development of both small-scale industries and heavy industries, it does not necessarily mean that they are given equal importance. The government may focus more on certain sectors based on its economic policies and goals.

Option 4: This option suggests that the economy is controlled by both military and civilian rulers. However, in a mixed economy, the control and management of the economy are typically carried out by civilian institutions, such as government agencies and regulatory bodies, rather than the military.

Therefore, option 2