A unique cultural practice among some Naga tribes is:

Headhunting
Jhum cultivation
Weaving
Tattooing

The correct answer is: a) Headhunting.

Headhunting was a traditional practice among some Naga tribes in Northeast India. It was believed that by taking the head of an enemy, a warrior could gain the enemy’s strength and power. Headhunting was also seen as a way to prove one’s manhood and to gain status in the tribe.

Jhum cultivation is a type of shifting cultivation that is practiced by some Naga tribes. Jhum cultivation involves clearing a patch of forest, burning the vegetation, and then planting crops in the ash. The crops are then harvested for a few years before the land is abandoned and a new patch of forest is cleared.

Weaving is a traditional craft that is practiced by many Naga tribes. Naga women are skilled weavers and produce a variety of textiles, including blankets, shawls, and skirts.

Tattooing is another traditional practice among some Naga tribes. Tattoos are often used to mark important life events, such as coming of age or marriage. They can also be used to show social status or to protect the wearer from harm.

It is important to note that headhunting is no longer practiced by any Naga tribes. It was banned by the British colonial government in the late 19th century and has since been abandoned by the Naga people.