Bollgard I and Bollgard II technologies are mentioned in the context of

1. Bollgard I and Bollgard II are trade names for specific technologies developed by Monsanto (now Bayer) used in cotton crop plants. 2. These technologies involve the introduction of genes from the bacterium Bacillus thuringiensis (Bt) into the cotton plant's genome. 3. Bollgard I contains the Cry1Ac gene, which makes the plant produce a protein toxic to certain lepidopteran pests, primarily the cotton bollworm. 4. Bollgard II contains two Bt genes (Cry1Ac and Cry2Ab), providing broader protection against bollworms and other pests. 5. Therefore, Bollgard I and Bollgard II are explicitly related to developing genetically modified crop plants (specifically Bt cotton) with insect resistance. 6. Options (A), (C), and (D) are incorrect. Clonal propagation, production of plant growth substances, and production of biofertilizers are different agricultural biotechnologies or practices.