Match the following columns and array ll Column-I & Column-II (a) Bt cotton & (i) Gene therapy (b) Adenosine deaminase deficiency & (ii) Cellular defence (c) RNAi & (iii) Detection of HIV infection (d) PCR & (iv) Bacillus thuringiensis array select the correct option.

1. A. a-iii, b-ii, c-i, d-iv
2. B. a-ii, b-iii, c-iv, d-i
3. C. a-i, b-ii, c-iii, d-iv
4. D. a-iv, b-i, c-ii, d-iii

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