4. Which statement best
expresses the central idea of the text ?

B. While North Korea's literature is presented as facts,most north korean citizens knows that it is fabricated by the regime.

(D) previous Actuarian.

Explanation:

The word "predecessor" refers to someone who comes before the present or current one. In other words, the person who came before us, be it in a job or any work is the predecessor.

In the given context, the phrase "previous Actuarian" helps us understand the meaning of "predecessor". This is because the word "pre" is present in both "predecessor" and "previous", referring to the prefix "pre" which means "before".

Thus, the correct answer is option D.