Any practices should best be based on a research - this is the correct answer. (a. child development and research) Research is the best source of actual knowledge, rather than people's best guesses (people's best guesses might lead government regulations, but it would be better if they also followed research results.).
Answer:
According to the population census of 2011 (2068 BS), there are 123 identified caste/ethnic groups, language groups and more than a dozen of religious groups.
A.what is not considered one of the three phases of fraud?