Answer:
The correct answer will be option-B.
Step-by-step explanation:
Elodea is the aquatic plant which contains all the organelles like a nucleus and cell wall which gives the box-like appearance to the cells. The elodea cells lack a central nucleus.
In the given question, the chloroplast organelle associated with the photosynthesis in plants is observed at the periphery in every plant cell. Few chloroplast cells are distributed in the center.
Thus, Option-B is the correct answer.