The correct answer is A. 14.20%.
The tertiary sector is the service sector of the economy. It includes activities such as banking, finance, insurance, real estate, tourism, and hospitality. The tertiary sector is the largest sector of the economy in most countries, and it is growing rapidly in developing countries.
In Bihar, the tertiary sector grew at a rate of 14.20% in 2017-18. This was higher than the growth rate of the secondary sector (12.60%) and the primary sector (10.20%). The growth of the tertiary sector was driven by the growth of the services sector, which includes activities such as banking, finance, insurance, real estate, tourism, and hospitality.
The growth of the tertiary sector has a number of benefits for the economy. It creates jobs, raises incomes, and improves the quality of life. It also helps to diversify the economy and make it less dependent on agriculture.
However, the growth of the tertiary sector also has some challenges. It can lead to congestion in cities, pollution, and social inequality. It is important to manage the growth of the tertiary sector in a sustainable way.
The other options are incorrect because they are not the correct growth rate of the tertiary sector in Bihar during the year 2017 – 18.