Select the correct group of biocontrol agents.

1. A. (1) Nostoc, Azospirillium, Nucleopolyhedrovirus
2. B. (2) Bacillus thuringiensis, Tobacco mosaic virus, Aphids
3. C. (3) Trichoderma, Baculovirus, Bacillus thuringiensis
4. D. (4) Oscillatoria, Rhizobium, Trichoderma

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