The process shown in the figure is photosynthesis. So the correct option is D.
What is photosynthesis?
The process by which green plants prepare the organic material for their survival is called photosynthesis. Photosynthesis is a characteristic of green plants.
The green plants contain a layer of long cells called mesophyll cells. These cells have a specialized organelle called the chloroplast.
The chloroplast is a double membrane organelle containing stacks of thylakoids called grana. These grana contain the chlorophyll required for photosynthesis.
Chlorophyll traps the sunlight and converts it into chemical energy which is used for the hydrolysis of water and reduction of carbon dioxide to form glucose. Oxygen is released as a byproduct.
Therefore the correct option is B.
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