Sugar is uncountable, salt is uncountable, towel is countable, oranges is countable, and oil is uncountable
I would say that a person who is dogmatic does use the defensive behaviour of certainty and that such a person is answering only from the dogma that he/she knows and not being spontaneous and dealing with the topic in a living way in a way that is open to the world and seeing the other person's point of view that though one may not agree with another point of view one should at least respect it.
The last answer I'm not sure of this
The underlined word <em>unique </em>is used as C. predicate adjective in the sentence.
A predicate adjective is the adjective following a copulating/linking verb.
The linking verb here is <em>is, </em>and the predicate adjective is therefore the adjective following it, which is <em>unique. </em>