The correct answer is: d) All of the above.
Migrant workers in Punjab are primarily employed in agriculture, construction, and industry.
Agriculture is the largest employer of migrant workers in Punjab, accounting for over 50% of all migrant workers. The main crops grown in Punjab are wheat, rice, cotton, and sugarcane. Migrant workers are employed in all aspects of agriculture, from planting and harvesting to irrigation and livestock management.
Construction is the second largest employer of migrant workers in Punjab, accounting for over 25% of all migrant workers. The main construction projects in Punjab are roads, bridges, dams, and power plants. Migrant workers are employed in all aspects of construction, from digging and laying foundations to erecting and finishing structures.
Industry is the third largest employer of migrant workers in Punjab, accounting for over 20% of all migrant workers. The main industries in Punjab are textiles, pharmaceuticals, and electronics. Migrant workers are employed in all aspects of industry, from manufacturing and assembly to packaging and shipping.
Migrant workers play a vital role in the economy of Punjab. They provide essential labor in a variety of sectors, and their remittances help to support their families and communities back home.