The option (D) virus is not an organism.
What do you mean by an organism?
An organism is a living system which is composed of cells, and it reacts to all stimuli, capable of growth, reproduction, and development.
All plants, animals, fungi, bacteria etc. consider as an organism.
Virus is a microscopic infectious agent that covered with a coat of protein and contain genetic codes.
But virus is not an organism because it replicates only when it comes in contact with any living cell, it is noit able to grow on its own.
Thus, virus (D) is not consider as an organism.
Learn more about organism, here:
https://brainly.com/question/12825206
