Explanation
- A
Only one
Only one. All four mushroom properties exist.
- B
Only two
Only two. Under-counts.
- C
Only three
Only three. Bioluminescence and insecticidal uses also exist.
- D
All four
All four. Medicinal, psychoactive, insecticidal and bioluminescent mushrooms are all real.
Summary. Official key is (d) all four. Ganoderma and others are medicinal; Psilocybe is psychoactive; some entomopathogenic fungi / extracts are insecticidal; Mycena and others glow (foxfire). None of the four statements fails.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
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