Which theoretical perspective seems like the one that is best suited to explain development across the human life span, from birth to old age?

Tasks:
Choose which theoretical perspective seems to be the best one to use to study human lifespan development?
Explain why you think that particular theoretical perspective is the best one to study human lifespan development.
Describe one drawback, or limitation, that you perceive about the theoretical perspective that you chose.
Write one question that you would ask the pioneer of that perspective, if you could have a conversation with the pioneer of that theoretical perspective.
Reply to two classmate’s responses.
Sample of Good Work:
For example, if you thought that the cognitive social learning theory was the best theoretical perspective used to study human development, you might say that this theory was the best, because people learn from watching others and copying what other people do. That you see this on a daily basis. That the research presented in the book seemed to provide compelling evidence that this was the best theoretical perspective in which to study human development. You could also say that one drawback, or limitation of this theoretical perspective, but it does not account for an individual’s personality that influences behavior. One question you might have for the pioneer of this theoretical perspective could be: Is it possible for social cognitive learning to occur between two people, if they live across the country and have never met each other in person and therefore had not had an opportunity to physically see each other in person, in order to be influenced by one another’s behavior?