TASK DEFINITION: Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
PROBLEM: Question: I've heard people say "be king" (as in "I can't wait to be king") in movies and TV. Why don't they say "be a king"? Which is correct? 
Answer: Since "a king" uses an indefinite article, it suggests that he may become any one of a number of kings. In most cases where a person may become king, there is only one king in the political structure he inhabits. For instance, if he is in the line of succession for the English throne, he probably cannot become king of France or Denmark without marrying into that royal family. The equivalent phrase to "I can't wait to be king" would use a definite article - it could be rephrased as "I can't wait to be the king", since there is only one kingship he is eligible to accede to.

SOLUTION: yes

PROBLEM: Question: It is quite easy to separate preferences, and configuration, but options, and settings have much similar meaning; So similar,in fact, that I can't pick one over another. Could you please describe the meaning of these two words? What is it common between them, and what is it different? I have removed "software UI" from the title, as it seems to lead answers off topic. I'm genuinely interested in subtle difference in meaning of named words. 
Answer: Options refers to things you may choose;you may select one over another. So, the options you chose are "preferences". Settings mostly implies the "context" that the options you chose are in and is more like configuration. E.g; Color is "setting"; red, green, blue e.t.c are options. Font is "setting"; Arial, Times New roman are options. Settings: color, font.

SOLUTION: yes

PROBLEM: Question: I often hear US citizens say something like this: <Some phrases>. Period. What does period mean when it appears in a sentence by itself in this type of situation? 
Answer: Period at the end of the sentence means, the things said in the sentence are definite and no change is allowed. For example, "I want the document without any errors, period" meaning that there should not be any errors in the document.

SOLUTION:
no