Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified:
A | B | C | D | |
1. | Guard cell | Stomatal aperture | Subsidiary Cell | Epidermal Cell |
2. | Epidermal Cell | Guard Cell | Stomatal aperture | Subsidiary cell |
3. | Epidermal Cell | Subsidiary Cell | Stomatal aperture | Guard Cell |
4. | Subsidiary Cell | Epidermal Cell | Guard Cell | Stomatal aperture |
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