Read the passage: 'Photosynthesis converts light energy into chemical energy stored in glucose. Chloroplasts, found in plant cells, contain chlorophyll that absorbs sunlight. Water and carbon dioxide are the raw materials, while oxygen is released as a byproduct.' Which sentence best states the central idea?
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A
Plants produce oxygen through a process involving chlorophyll.
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B
Photosynthesis is the process by which plants convert light into stored chemical energy.
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C
Chloroplasts absorb sunlight and release oxygen into the atmosphere.
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D
Carbon dioxide and water are essential to plant survival.