Plants can make their own food by a process called photosynthesis. This involves the creation of carbohydrates using water which is obtained from the soil, carbon dioxide which plants get from the atmosphere and energy from the Sun. The reaction is an endothermic one and this makes the presence of energy essential. The pigment that makes photosynthesis possible is called chlorophyll. It is found in cellular structures called chloroplasts in certain plant cells. These are usually found in the leaves of plants. It is the chlorophyll present in the leaves of plants that gives them their green color.
The correct answer is option A, chloroplasts.