Answer:
Egg Yolk
Explanation:
The main emulsifying agent is lecithin.
Is this still true at the end?- I think this could be answered either way.
I think that Nick hates the way money makes people act and that the rest of the characters are so caught up in this that it causes the outcome (or tragedy) at the end of the book.
In A: it should be "I was" not "I were".
In B: it should be "lately you appear" not "you appears"
in C: this is correct! the subject is in agreement with the verb, and this is the correct answer.
in D: it should be "you are"