Match the following theories of color vision with their key concepts:
रंग दृष्टि के निम्नलिखित सिद्धांतों को उनकी प्रमुख अवधारणाओं से सुमेलित करें:
| List I (Theory) | List II (Key Concept) |
| 1. Trichromatic Theory | (i) Three types of cones sensitive to red, green, and blue light |
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| 2. Opponent-Process Theory | (ii) Color perception based on opposing pairs of colors (red-green, blue-yellow, black-white) |