Improvement of the human species or race by selective breeding is called as:

Correct option is A

Eugenics refers to the practice of improving genetic qualities of human populations through selective breeding.
· (a) Eugenics – Correct, as this involves controlling reproduction to enhance desirable traits.
· (b) Ergonomics – Incorrect, as ergonomics deals with designing environments for better human efficiency.
· (c) Euthenics – Incorrect, as euthenics focuses on improving environmental conditions rather than genetic manipulation.
· (d) Ethology – It is the scientific study of animal behavior, especially in natural environments. It focuses on instincts, learning, and social interactions in animals. Famous ethologists include Konrad Lorenz and Nikolaas Tinbergen, who studied imprinting and animal communication.