Explanation:

- The Deccan Plateau is a large, roughly triangular landmass in southern India.

- It is bounded by different mountain ranges on its edges.

- In the north, the Deccan Plateau is bounded by the Satpura Range.

- The Vindhya Range lies slightly to the north of the Satpuras, and marks the boundary between northern and southern India, but it's the Satpura that directly borders the Deccan Plateau.

- The Aravalis are far to the northwest of India and do not border the Deccan Plateau.

- The Western Ghats run along the western edge of the Plateau, not its northern boundary.

Correct Option:

Option 2: Satpura