Indian iron ore is transported from Kolkata to Zhanjiang, China. The main waterway or canal on the way is () A. Turkish Strait B. Suez Canal C.

Malacca Strait between Malay Peninsula and Sumatra Island is a natural waterway connecting the Pacific Ocean and the Indian Ocean, and it is also an important waterway connecting ports along the coast of Europe and the Indian Ocean with ports on the west coast of the Pacific Ocean. The Malacca Strait is 1.080 km long, with a trumpet shape that is wide in the northwest and narrow in the southeast, and the water depth is 25- 1.50 meters. There are not many shoals and reefs, and most of the time it is calm, which is conducive to shipping.

Therefore, choose: d.