I believe the correct answer is naive.
The author is trying to say that he was ignorant, and that he couldn't understand properly these new revelations. He was either too young or too stupid to understand such a thing, but he believes he will as he grows older.
It depends on what kind of eel
For example, Moray eels eat fish, mollusks, and shrimp.
Demise ,abolish ,baseness ,corruptness,crook,bluff
Hyperbole. Because I know
The answer is C
just reading the article in the lives of the questions gives away. hope I helped