The correct option is The Rajmahal Hills.
Explanation
The Meghalaya Plateau is geologically an extension of the Indian Peninsular Plateau. It was separated from the main Peninsular block by a depression known as the Malda Gap (or Rajmahal-Garo Gap), formed due to faulting. The plateau comprises specific hill ranges named after the tribal groups inhabiting the region.
Analysis of Options
- The Garo, Khasi, and Jaintia Hills: These three hill ranges constitute the Meghalaya Plateau. They are arranged from west to east and represent the detached northeastern extension of the Peninsular block.
- The Rajmahal Hills: These hills are located in the Jharkhand state and form the northeastern edge of the Chotanagpur Plateau. They belong to the main Peninsular block situated to the west of the Malda Gap. Therefore, they are not a subdivision of the Meghalaya Plateau.
Key Takeaway
The Meghalaya Plateau consists of the Garo, Khasi, and Jaintia Hills. It is separated from the Rajmahal Hills (part of the Chotanagpur Plateau) by the Malda Gap.