Answer:
The answer is: (C) Morals.
Step-by-step explanation:
In the 3.06 assignment lesson in page 5, it states:
Logos: The use of facts, statistics and logic to make a point.
Pathos: The use of emotion to make a point.
Ethos: The use of credibility, morals, or ethics to make a point.
In the question it requires a word for the blank space after "their" which is morals.
(I read the lesson and did the exam.)