Neem tree has acquired industrial importance as a source of:

1. Biopesticide and anti-fertility compound
2. Anti-fertility compound, biofertilizer and anti-cancer drug
3. Biofertilizer, biopesticide and anti-fertility compound
4. Anti-cancer drug, biopesticide and biofertilizer

Explanation

Option (a) is correct

• Neem has significant industrial and medicinal importance. Neem extracts, especially azadirachtin, are widely used as biopesticides because of their insect-repellent and pest-control properties. Neem compounds have also been studied for anti-fertility effects and are used in contraceptive research. However, neem is not primarily recognised as a biofertilizer or anti-cancer drug in this context.

Answer: (a) Biopesticide and anti-fertility compound