Answer: Option B
Explanation:
Thylakoids are membrane bound compartments inside cyanobacteria and chloroplast. They are the main site for the process of photosynthesis.
The chlorophyll present in thylakoids absorbs sunlight and converts light energy into chemical energy.
This energy is used by plants to get energy to carry the various metabolic processes of the plant body.
Thus, the correct answer is option A
