Answer:
Egg Yolk
Explanation:
The main emulsifying agent is lecithin.
The Tone is achieved through word choice (diction), sentence construction and word order (syntax), and by what the viewpoint character focuses on. The Tone is created or altered by the way the viewpoint character/narrator treats the story problem and other characters, and by the way, he responds to the events surrounding him.
A, discourage you can tell because if you plug in the options that is the only one that makes sense and the opposite of dissuade is persuade which means to encourage.