The correct option is "many" because "many" refers to a large number of parts, which is suitable in this context. The sentence is referring to multiple areas or sections of the world, and "many" appropriately describes the quantity of these parts.
Thus, the correct sentence is: "Clean water is a precious commodity in many parts of the world."
Each question has a sentence that has an underlined part. Choose the option which rephrases the underlined part in the most appropriate manner in terms of grammar and usage.
In an attempt to boost their profits, many edible oil-producing companies have been engaging themselves in propaganda against commonly used oils and promoting exotic and expensive varieties of oils \(\underline{as\ more\ healthier\ options.} \)