Coronavirus, the modern epidemic of the modern era. A factor affecting all sectors, a crisis.
-tion is used to form NOUNS from verbs.
it means "guilty of or involving betrayal or deception." or "(of ground, water, conditions, etc.) hazardous because of presenting hidden or unpredictable dangers."
The pronoun <em>her </em>is used as C) object of preposition in this sentence. <em>Between </em>is the preposition, and the pronoun is used as its object.
The analogy is meant to show parallels between two sets of words. Fertile is to arable as vague is to clouded. If you understand either pair it can be used to decipher the meaning of the other pair you don't know.