Answer:
The correct answer is - D. A banker quĂts his job to work at another bank that offers a higher salary.
Explanation:
The market economy is the economy in which the production of goods or services directed by the supply and demand of a particular service or good. In this case, the demand for the service of the banker is high.
He quits the job as he gets more salary than the previous one. The salary of the job depends and decided by the market demand and supply of bankers. So it is a market-based economy.