'Swarm' means a large group of flying insects.
And 'Swarm Intelligence' or Swarm Intelligence systems consist typically of a population of simple agents or boids interacting locally with one another and with their environment. The inspiration often comes from nature, especially biological systems.
Boids is an artificial life program,The name "boid" corresponds to a shortened version of "bird-oid object", which refers to a bird-like object.
Bionics is the application of biological methods and systems found in nature to the study and design of engineering systems and modern technology.
So, the ans. is option D) .