The correct answer is: C) Central India and the Deccan Plateau.
The Vindhya Range is a mountain range in central India that runs north-south for about 1,000 kilometers (620 mi). It forms a natural boundary between the Central Indian Plateau and the Deccan Plateau. The Vindhya Range is a major watershed, with the rivers to the east flowing into the Ganges River system and the rivers to the west flowing into the Arabian Sea. The Vindhya Range is also an important biogeographical boundary, with the forests to the east being home to a different set of plant and animal species than the forests to the west.
Option A is incorrect because the Vindhya Range does not form a natural boundary between Madhya Pradesh and Rajasthan. The two states are separated by the Chambal River.
Option B is incorrect because the Vindhya Range does not form a natural boundary between Madhya Pradesh and Uttar Pradesh. The two states are separated by the Yamuna River.
Option D is incorrect because the Vindhya Range does not form a natural boundary between Madhya Pradesh and Maharashtra. The two states are separated by the Narmada River.