Metaphor is when your comparing two things without using like or as and a simile is when ur comparing two things using like or as
B. Oferous
The suffix in the word is ferous which means having, bearing, or containing a specific object, which where the full word oferous would be answer that is acceptable.
To explain why the other answers are incorrect:
D. -oisis means conditions, denoting actions or states
C. -Oid this term is used for the words resembling.
A. Ful meaning that something is full with or full of
What caused this tragedy was the death of her brothers Eteocles and Polyneices during a battle for Supremacy in Thebes.