we know that
A kenning is a figurative expression that substitutes a name or a noun. It is usually a compound of two words and words have scripts. The Kennings are associated with the poetry of the ancient Norse, Icelandic and Anglo-Saxon.
Examples
First Lady - wife of the president
Four-eyes = someone who wears glasses
therefore
the answer is the option
A) a kenning.
Introvert= Less sociable, keeps more to self
Extrovert= outgoing, sociable
Personally-
I would say I am about 60% an introvert and 40% and extrovert. When I am at school, I try to keep more to myself. I like to be by myself and focus on schoolwork. When I am with friends I tend to be more extroverted because I am comfortable with them. I talk more, not only to them, but also to people i do not know.
I think the answers are 10= essence 11= A 12= B 13 = C