It's best to choose option d. The thylakoid membranes of the chloroplast are where the photosynthetic reactions that depend on light take place.
Chemical energy is transformed into light energy by light-dependent processes. In order to make ATP and NADPH, the light-dependent processes of photosynthesis must first collect energy from the sun. The two energy-storing molecules are subsequently put to use in processes that don't require light.
During light-dependent reactions, chlorophyll absorbs solar energy and converts it into chemical energy that is subsequently stored. In light-independent reactions, sugar molecules are assembled from carbon dioxide using the chemical energy generated during light-dependent reactions.
As a result, we can conclude that option d is the best alternative. The light-dependent photosynthetic reactions take place in the chloroplast's thylakoid membranes.
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