Answer:
The correct answer is option D.
Explanation:
An organism with bilateral symmetry takes place in such animals that shows the division of the animal in two-part right and left halves or mirror image through the sagittal plane.
The example of such organisms is crab, humans, butterfly and many more. The bilateral symmetry normally has an anterior and posterior end which are mouth and tail end in such animals.
Thus, the correct answer is option D.