Word of mouth, would be your answer.
Answer: Savagely fierce, cruel, or violent.
Example: "The wolverine is nature's most ferocious and violent animal."
A participle is a word formed from a verb.
Like going, gone, being, or been.
It can also be an adjective like working woman, burned toast. (A verb being used as an adjective).
To answer the question above if what option would Korina choose to earn more income towards the goal of buying a new house after she graduates college; with $12,000 she can start up a small buy and sell business and invest in stock market or mutual funds for passive income monthly/yearly.