The correct answer is (a) 19.0%.
The primary sector is the sector of an economy that extracts raw materials from the environment. This includes agriculture, forestry, fishing, and mining. The primary sector is the smallest sector of the economy in most developed countries, but it is still important in many developing countries.
In India, the primary sector contributes about 19% of the GDP. This is lower than the contribution of the secondary sector (29%) and the tertiary sector (52%). However, the primary sector is still important in India, as it employs about 50% of the workforce.
The primary sector is important for several reasons. First, it provides food and other essential resources for the population. Second, it generates employment for a large number of people. Third, it can help to conserve the environment.
However, the primary sector also has some negative impacts. For example, it can lead to deforestation, pollution, and soil erosion. It can also be harmful to the health of workers.
Overall, the primary sector is an important part of the economy. It provides food and other essential resources, generates employment, and can help to conserve the environment. However, it also has some negative impacts that need to be addressed.
Option (b), 30.4%, is incorrect because the primary sector contributes about 19% of the GDP in India.
Option (c), 34.9%, is incorrect because the primary sector contributes about 19% of the GDP in India.
Option (d), 46.1%, is incorrect because the primary sector contributes about 19% of the GDP in India.