The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively?

1. A. cryIAc and cryIIAb
2. B. cryIAc and cryIIIAb
3. C. cryIAc and cryIAb
4. D. cryIIAb and cryIAc

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