The correct answer is: Tourism.
Tourism is a major source of income and employment in Meghalaya. The state is home to a number of popular tourist destinations, including the Mawlynnong village, the Nokrek National Park, and the Cherrapunji waterfalls. The tourism industry employs a large number of people in the state, directly and indirectly.
Mining and mineral processing is another important sector in Meghalaya. The state is home to a number of mines, including coal mines, limestone mines, and bauxite mines. The mining industry employs a large number of people in the state.
Food processing is a growing sector in Meghalaya. The state is home to a number of food processing companies, which produce a variety of products, including processed meat, processed vegetables, and processed fruits. The food processing industry employs a growing number of people in the state.
Handlooms and handicrafts are also important sectors in Meghalaya. The state is home to a number of handloom and handicrafts cooperatives, which produce a variety of products, including textiles, jewelry, and woodcarvings. The handlooms and handicrafts industry employs a large number of people in the state.
However, tourism is the sector that provides the most significant employment and livelihood opportunities in Meghalaya.