Answer:
A. Chloroplast
Step-by-step explanation:
The function of leaf cells is to carry out photosynthesis. The chloroplast is a double membrane-bound organelle that has chlorophyll pigment and serves as a site for photosynthesis. Root cells carry out the function of absorption of water and minerals from the soil. They do not perform photosynthesis. Hence, leaf cells have more chloroplasts than the root cells.