The correct option is D
1, 2 and 3
Explanation:
Statement 1 is correct: Millions of years ago, the Indian plate and the Australian plate were one plate, much larger in scale, situated on the south side of the equator. Later the plate started to drift towards equatorward.
Statement 2 is correct: The plate split into several sections over the years, and the Australian plate shifted toward the southeastern direction, while the Indian plate toward the north.
Statement 3 is correct: This northward displacement of the Indian plate is still underway and has significant implications for the Indian subcontinent's physical climate. The Indian plate collision in the Eurasian plate about 50 million years ago resulted in the creation of the Himalayan mountain chain, which today includes the highest peaks on Earth.