Correct option is D
The Himalayas were formed as a result of the uplift from the Tethys geosyncline. The Tethys geosyncline was a large oceanic area that existed between the Gondwana and Laurentia continents before the collision of the Indian Plate and the Eurasian Plate.
- The Tethys Sea was an ancient sea that existed between the Indian Plate and the Eurasian Plate, and the tectonic activity in this region led to the formation of the Himalayas.
The collision between the Indian subcontinent and the Eurasian Plate around 50 million years ago led to the uplift of the Himalayas, which is still ongoing.
The Tethys geosyncline was also important in the development of other significant mountain ranges and geological features in Asia.
Additional Information:
Appalachians geosynclines: These geosynclines are related to the formation of the Appalachian Mountains in North America.
Aravalli geosynclines: These are related to the formation of the Aravalli Range in India, which is much older than the Himalayas and formed through different tectonic processes.
Caledonian geosynclines: These geosynclines are associated with the formation of mountain ranges in Scotland and Norway.