Biology affects behavior also through mechanisms of heredity regulated by genetic principles. The nature versus nurture controversy— that is, how much of our behavior is due to inherited factors and how much to environmental factors—is a question that has plagued scientists for years and is still unresolved.
The statement above is based on the assumption that improved labour standards, economic achievement and social security are not always possible. The correct option is A. It can be seen from the passage that the collaboration of all countries is needed in order to secure for all improved standards, economic achievement and social security; which means that without collaboration, these things will not be achievable.
Shan is considered to be a first person narrator because he both tells the story and appears in it.
A first-person narrator would obviously use the first person pronoun (I) to refer to him/herself. So, the entire story is told from this person's point of view, using that particular pronoun. E.g. 'I saw him standing there...' is an example of a first person narration which Shan is an example of. If he were talking about someone else, it would be third-person narration.
Technology, easy communication methods that’s kinda all I can think about