Answer: Option D
Step-by-step explanation:
Chloroplast is a cell organelle which is found specifically in the plant cell. It stores pigment named as chlorophyll.
This pigment traps the sunlight which is used for the process of photosynthesis.
In the process of photosynthesis the light energy that is trapped in the chloroplast is converted into chemical energy.
This energy is used for the various metabolic processes in plant cell.