Explanation:

- The Great Bath of Mohenjo-Daro is an ancient structure found in the Indus Valley Civilization.

- It is renowned for its impressive architecture and advanced design for its time.

- The shape of the Great Bath is rectangular, measuring approximately 12 meters in length, 7 meters in width, and 2.4 meters in depth.

- Option 1: Rectangular - This is correct; it mirrors the actual shape of the Great Bath.

- Option 2: Square - This is incorrect; the Great Bath is not a square shape.

- Option 3: Elliptical - This doesn’t match the rectangular shape.

- Option 4: Circular - The structure is not circular in design.