Answer:
a. politeness.
Step-by-step explanation:
-Politeness refers to being respectful to people.
-Indifference is when a person shows no interest about something.
-Rudeness is when a person is not polite.
According to the definitions and considering that civility means to be friendly and respectful to other people, the answer is that when you are treated with civility, you are being shown politeness.