Answer:
3. Again, and then, in addition.
Explanation:
All of these are words that signal that more information about the same subject is coming up.
The most common is Chicago style.
Answer:

According to blank slate theory, the mind is completely blank at birth. From there, education, environment, and experiences – which are external, as well as material and/or immaterial – shape the child's process of development. This leaves a lasting effect on who they become.