Answer: The correct answer is -
Chloroplast.
Chloroplast is a specialised membrane bound, green colored organelle, present in the photosynthetic organisms such as algae and green plants.
Chlorophyll is a green colored pigment that is present in the Chloroplast. It helps in the formation of food in these organisms, using carbon dioxide and water in the presence of sunlight (photosynthesis).
Chlorophyll absorbs energy from sunlight and convert it into chemical energy in the form of ATP and NADPH, which is finally used in the formation of carbohydrate (glucose).
Thus, chloroplast is the right answer.