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.).
<em>Any</em><em> </em><em>two</em><em> </em><em>features </em><em>of</em><em> </em><em>society </em><em>are</em><em>:</em><em> </em>
<em>1</em><em>.</em><em> </em><em>Strong</em><em> </em><em>mutual </em><em>bond</em><em>.</em>
<em>2</em><em>.</em><em> </em><em>Dynamic</em><em> </em><em>and</em><em> </em><em>progressive </em><em>.</em>
I think that the best answer is "nation" but sometimes the word "nation"also refers to people without recognised borders, such as the Kurdish people or Jews before the establishment of modern Israel.
Answer: c. Master status
Explanation:
Master status is known to be the position which a person is identified and recognized with. It is a status which a person earns due to the characteristics exhibited by him or her and which affect how people relate with him or her. It is of great significance in the existence of an individual because it makes him or her to be aware, conscious and understand the society in which he or she lives. Furthermore, it has great impact on the social identity of an individual. Thus, master status can be based on sex, religion, race, education, age, position and so on.
Answer: Social class
Explanation:
Social class refers to a category of people who have similarities in financial status and social attributes. By social attributes, they could be in same social club, or same religious body.