Due to the progress in the field of modern medicine and advances in nutrition and hygiene, less people die every year from infectious diseases then ever before.
Due to the progress in the field of modern medicine and advances in nutrition and hygiene, less people die every year from infectious diseases then ever before.
Solution
This question tests the distinction between "fewer/less" and "then/than" in comparative constructions.
Use "fewer" with countable nouns (people, cars, books) and "less" with uncountable nouns (water, time, money). For comparisons, use "than" not "then" – think "greater than" in math class!
Option 1 → Uses "fewer" correctly but "then" should be "than" for comparisons.
Option 2 → Double trouble: "less" wrong for countable people, "then" wrong for comparisons.
Option 3 → Perfect! "Fewer people" and "than ever before" both spot-on.
Option 4 → Grammatically fine but unnecessarily wordy and slightly changes the meaning.
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