The permanent traits of tribes include which of the following?
A. Language and region
B. Physical Characteristics
C. Ecological Habitat

A B and C

The correct answer is Option 4: All A, B and C.

Statement A: Language and region. Correct. Tribes are commonly identified by a common language and a specific geographical region. These are considered important and relatively permanent characteristics of tribal identity.

Statement B: Physical Characteristics. Correct. Physical characteristics are one of the bases used in the anthropological classification of tribes and are regarded as relatively permanent traits.

Statement C: Ecological Habitat. Correct. Tribes are closely associated with a particular ecological habitat, such as forests, hills, deserts, or islands. Their way of life is closely linked to their natural environment.

NCERT: "In terms of positive characteristics, tribes have been classified according to their ‘permanent’ and ‘acquired’ traits. Permanent traits include region, language, physical characteristics and ecological habitat.