Correct option is D
Various commissions and committees on education set up by Government of India after Independence emphasized the teaching of science from the primary level. All of them emphasized the teaching of science of fundamental principles and concepts useful in daily life. The development of process skills like observations, classification, measurement, communication etc. To nurture the natural curiosity, aesthetic sense and creativity in pupils and enabling them to carry out innovations in science. Certain socially desirable habits like honesty, truth, tolerance, self-confidence, self- reliance etc. should be inculcated through the science. In search of the answer to ‘What’s’ and ‘Why’s’ and ‘How’s’ of the things teacher should encourage pupils to observe and accept the natural things as such.