Correct Answer: Ethology

Solution : The correct answer is Ethology

Ethology is a branch of zoology that studies the behaviour of animals, usually with a scientific focus on behaviour under natural conditions, and viewing behaviour as an evolutionarily adaptive trait.

Although many naturalists have studied aspects of animal behaviour through the centuries, the modern science of ethology is usually considered to have arisen as a discrete discipline with the work in the 1920s of biologists Nikolaas Tinbergen of the Netherlands and Konrad Lorenz of Austria.

Ethology is a combination of laboratory and field science, with strong ties to certain other disciplines—e.g., neuroanatomy, ecology and evolution .

Final answer is Ethology