What does the suffix -ist mean in the word optimist?

Among the three sisters, the optimist had the brightest outlook.

A. one who does or believes something
B. one who fights conviction or principle
C. one who has imagination or inner vision
D. one who shows a trait or ability

Which detail does the author include to support the central idea about how her mother about the dictator? a) doubly revolted b) obsession c) in exile d) isolated e) cautionary tales

Which line in this excerpt from "the love song of j. alfred prufrock" by t.s. eliot uses synecdoche? shall i say, i have gone at dusk through narrow streets and watched the smoke that rises from the pipes of lonely men in shirt-sleeves, leaning out of windows? i should have been a pair of ragged claws scuttling across the floors of silent seas.

Which two excerpts in the passage supports the claim that paine believed the cost of the colonists' struggle against the british was well worth the outcome?