B. Running water
**eplanation:**
I believe the answer is: proximodal trend
Proximodal trend refers to the period when children started to develop more specific muscle/ motor skills.
For people in general, our upper body tend to be developed at much faster rates compared to our lower body, which cause infants having to crawl first before they are able to walk.
Dull: bland, boring
Brilliant: amazing, revolutionary
Doleful: sad, depressed
Vivid: clear, precise
The answer is also known as social interaction. A social
interaction is a discussion between two or more individuals and is a building
block of society. Social interaction can be studied between groups of two
(dyads), three (triads) or larger social groups. By interacting with one
another, people design rules, institutions and systems within which they seek
to live.
I am pretty sure it's four. I looked it up, and I have a book I just looked through. Sorry if it's wrong! Have a good rest of 2016!
