Correct option is C
The Service Sector (also known as the tertiary sector) is the largest contributor to India's Gross Domestic Product (GDP) and national income. Over the years, India's economic structure has shifted from being an agrarian economy to one dominated by services, which includes industries such as information technology, banking, insurance, hospitality, and retail.
According to various economic surveys, the service sector accounts for over 50% of India's GDP, while agriculture and industry contribute smaller portions.
Although agriculture was the dominant sector in the early years post-independence, the liberalization of the Indian economy in the 1990s led to rapid growth in services, making it the leading sector today.