Answer:
At some point people believed that the production of certain bodily fluids or Humours could determine human behavior. Those humours are:
Blood ⇒ Sanguine
Blood represented a sanguine nature which means that the person goo-natured, energetic and positive. They are optimistic about life and so can rarely be depressed.
Phlegm ⇒ Phlegmatic.
Phlegm represented introverts as they referred to reserved and calm people.
Yellow bile ⇒ Choleric.
Yellow bile came to represent bad and ill tempered people who were prone to anger and aggression.
Black bile ⇒ Melancholic
Black bile was for people who were depressed and generally sad about life.
I would have to say C because it's the only logical answer to do with the subject at hand, and shows that when the speaker says something like "You know how when..." or "Have you ever...?".
Answer:
the weight of the air molecules above causes the air molcules to have pressure
Explanation:
Root: Pan- all ; Affix: Demic- people
Pandemic: an outbreak of disease
Root: Dis- not ; Affix: Reputable- respected
Disreputable: not considered respectable
Root: Intra- inside ; Affix: Cellular- relating to cells
Intracellular: occurring within a cell
Root: Medi- middle ; Affix: Ate- possessing
Mediate: intervening in a dispute