To show the difference between two things and to emphasize a certain point
The king is the correct answer.
<span>When Gulliver realizes that his lilliputian captors are only six inches high, he </span>does not attempt to escape. He realizes that there's nothing to fear from such small people and that they can't harm him.
The correct answer is the last option: If you take away the suffix –n and the prefix un-, the root word is “know”.
Prefixes and suffixes are sets of letters that are added at the beginning (prefix) or end of a word (suffix). They are not words by themselves, but they do change the words' meanings or categories.
In this case, the root is know. The suffix -n is used to change the word's category from verb (know) to noun (known). While, the prefix un- is used to mean NOT. As a result the meaning of the word UNKOWN would be not known or familiar.
Based on my interpretation of this website, I believe it's the astronomers. :)