Concept:Industries that process bulky, heavy, or perishable raw materials are set up near the material source to reduce transport cost and wastage.
Explanation:Sugar refining depends on sugarcane as its main raw material.
Sugarcane is bulky, heavy, and begins to lose its sugar content soon after harvesting.
Carrying sugarcane over long distances is expensive and also lowers the quality and quantity of sugar obtained.
So, sugar refineries are placed close to sugarcane-growing regions.
Drug manufacturing, paint manufacturing, and watch making use lighter or more processed inputs.
Their raw materials are easier to transport, so they are not as strongly tied to raw material locations.
Therefore, among the given options, sugar refining is the industry best located near the source of raw material.
Answer:C. sugar refining