The correct answer is option 2, Sahara. The Tuareg people are a pastoral nomadic group who traditionally live in the Sahara Desert, which is located in North Africa. The Sahara is the largest hot desert in the world, encompassing several countries including Algeria, Mali, Niger, Libya, and Chad.

The Tuareg are known for their nomadic lifestyle, which involves herding and tending to livestock such as camels, goats, and sheep. They move across the desert in search of water and grazing land for their animals. This lifestyle is well suited to the harsh and arid conditions of the Sahara, where traditional agriculture is not feasible due to the lack of water and fertile soil.

The Tuareg have a distinct culture and identity, with their own language, customs, and traditions. They are often recognized for their distinctive indigo-dyed clothing and veiled turbans, which protect them from the harsh desert environment. They have a long history of trading and have played important roles in trans-Saharan trade routes. Despite modernization and urbanization, many Tuareg still maintain their traditional way of life in the Sahara today.