Which suffix means a person who shows excessive preoccupation for something?

a. - mania

b. - maniac

c. - phobia

d. - phobic?

The answer is "b. - maniac".

A suffix is a letter or gathering of letters included toward the finish of a word which makes another word. The new word is regularly an alternate word class from the first word.

for example;

as suffix - mania is used for excessive preoccupation and a suffix - maniac is used for a a person who shows excessive preoccupation.