The correct answer is: A. Modern and traditional industries.
A mixed economy is an economic system that combines elements of both capitalism and socialism. In a mixed economy, some of the means of production are privately owned and operated, while others are owned and operated by the state. This means that there is a co-existence of modern and traditional industries.
Modern industries are those that use advanced technology and methods of production. They are typically large-scale and capital-intensive. Traditional industries, on the other hand, are those that use more traditional methods of production. They are often smaller-scale and labor-intensive.
Both modern and traditional industries have a role to play in a mixed economy. Modern industries can help to drive economic growth and innovation. Traditional industries can help to provide jobs and support local communities.
The other options are incorrect because they do not accurately describe the characteristics of a mixed economy.
Option B, public and private sectors, is not a defining characteristic of a mixed economy. In fact, both public and private sectors can exist in any type of economy, including a capitalist economy, a socialist economy, or a mixed economy.
Option C, foreign and domestic investments, is also not a defining characteristic of a mixed economy. Foreign and domestic investments can occur in any type of economy.
Option D, commercial and subsistence farming, is not a defining characteristic of a mixed economy. Commercial farming is a type of agriculture that is focused on producing goods for sale in the market. Subsistence farming is a type of agriculture that is focused on producing goods for the farmer’s own consumption. Both types of farming can occur in any type of economy.