Match the chemicals in Group I with the possible type/class in Group II.
| Group I | Group II |
| P. Picloram | 1. Vitamin |
| Q. Zeatin | 2. Auxin |
| R. Thiamine | 3. Amino Acid |
| S. Glutamine | 4. Cytokinin |
A. P-2, Q-4, R-1, S-3
B. P-4, Q-1, R-2, S-3
C. P-3, Q-1, R-2, S-4
D. P-4, Q-2, R-1, S-3
Answer: Option A

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