A
High urban migration and industrial employment rates
B
Declining population, pre-agricultural technology, and extreme economic backwardness
C
Exclusive ownership of large commercial plantations
D
Mandatory representation in the state legislative assemblies
Correct answer: (b) Declining population, pre-agricultural technology, and extreme economic backwardness
Explanation
PVTGs are classified based on specific indicators such as declining or stagnant population, pre-agricultural level of technology, and extreme economic backwardness. Options A, C, and D do not describe PVTG classification criteria.