Given below are two statements: Statement I : The primary source of energy in an ecosystem is solar energy. Statement II : The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below:

1. A. Statement I is incorrect but statement II is correct
2. B. Both statement I and statement II are correct
3. C. Both statement I and statement II are incorrect
4. D. Statement I is correct but statement II is incorrect

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